Future thoughts

My ideas were this:

The gods of Celestia are the parts of the Primordial One who is a Devil of the Abyss with the power of absorb the elements and faith, being far stronger than the Archons. Before arriving, the sovereigns controlled the normal elements, being Wind, Earth, Lightning, Nature, Water, Fire, Ice, Space and Time.

The Primordial one absorbing them in the war and taking control of the elements, corrupting them and making them what is now, this being the reason of elemental energy being toxic for normal humans as its elements corrupted by the abyss.

Each one of the parts of the Primordial called as the element and they take the faith of the people to grow stronger, plus being able to take the body and experiences of those who completes their constellation, the ascension to Celestia being a fake of the gods taking their bodies: 

Anemo who has Vennessa's body

Geo who has Guhua's body

Electro who has Makoto's body, she being the culprit of Makoto's death as she wanted her body

Dendro, Hydro, Pyro, Cryo, Cosmos and Tempus, not having one known as know.

For the Tsaritsa, she is in truth Cryo, a true god of Celestia, she was summoned by the Cryo Archon using his Gnosis and she kept him hanging to keep her existence over the Teyvat as gods need the Archon and Gnosis to descend, later she will use Ellen who is the Sovereing of Cryo (in truth being of Ice, but as the element is corrupted, the soverign are slowly transformed into their corrupted forms, transforming into dragons)

About Kaenriah, it was a region that revered the god of Time, Tempus or Astaroth or Odin. The Royal family being the Eclipse family, the King being Irmin (Pierro), his wife being Cryo (the Tsaritsa) who started cold to everyone but fell in love with him, they having a daughter Skadi (also being called Gungir later and now being Fischl). They also had adopted a prince and princess, the Sovereign of Tempus (Aether) and of Cosmos (Lumine).

Tempus is the only god that doesn't live in Celestia, living at Kaenriah and not gaining more power from faith as the ones there. She is considered the god of Experience and she creates Divine Weapons that gives element like abilities to the chosen ones.

Irmin was considered the best king ever, he being wise and kind ruler and the strongest. He is the best with every weapon, being able to use all the Divine ones, he also has a transcendental power away from the elements, being the Black Sun that turns everything to 0. 

For the people, he was a perfect king except for his family. His wife not minding anything except Irmin and his daughter being a kind of rebel.

Skadi since young loved a lot her parents, but she felt that her mother was cold to her, she only interested in her husband. When she is old enough and Cryo teaches Skadi directly how to wield a sword, Skadi is happy to finally having her mother attention. However, once Skadi shows her grand talent, even being chosen by the Divine Sword Skofnung, Cryo stops teaching Skadi, giving her to an archer teacher.

Skadi learns that it wasn't that her mother was interested in her and wanted to pass time with her, her mother wanted for her to be like her father and dominate every weapon, teaching Skadi herself only being because Cryo was the best swordmaster around and the best possible teacher.

Skadi rebels against her mother,taking the archery classes, dominating and being accepted by the Divine Weapon Gungnir and taking the name of the weapon as herself, negating to learn any other weapon and follow her father footsteps to rebel her mother. She even participating in the selection of the 9 Swords of Kaenriah and taking first place as she has trascendental powers, the Red Moon with the power to invert energy, she also obtained a Cosmos Vision, being the only Cosmos user and even completing her constellation except for a star.

Seeing her rebellion, Irmin thinks that she doesn't want her position as princess and she did not wish to become the future Queen so he starts teaching Aether to become the next King, he greatly accepted by the people as the Sovereign of the element of their god.

Skadi and Lumine had a good relationship of sister, both being more or less hated by the people, Lumine because they considered Cosmos their greater enemy and Skadi for her rebellion, never acting as a princess.

The battle of Kaenriah start as Gold with Skadi's help who became his disciple to learn different arts than her father and become different to him unlike her mother wants, opens the Abyss over Kaenriah while tricking Skadi, betraying the people of Kaenriah who start being corrupted and their minds destroyed.

Irmin fights to protect the people against the monster invading from the Abyss while Tempus stops the time of the Abyss to avoid the contamination. Skadi feeling very guilty to have helped Gold to open the Abyss to control its power, she unleashes her 6 star, desiring to close the Abyss as Cosmos takes control of her body. 

Cosmos is able to descend thanks to it and closes the Abyss fullfilling Skadi's wish, however, she doesn't stop. She angry at Cryo for siding with Kaenriah, as the Celestia Gods are unable to kill each other, Cosmos seals Cryo over a little space, making her unable to move from it (later becoming the Zapolyarny Palace).

Then, Cosmos breaks Kaenriah even more later, opening even more, making Kaenriah fall into the Abyss as that has been her plan since the start, she being the one that made possible to Gold for open the Abyss as her wish is to kill Tempus, and to do it, she wants to weak him by destroying her followers at kaenriah. The Archons appearing into the war against Kaenriah, and Electro taking advantage to kill Makoto and take her body.

Irmin seeing her daughter body and soul being taken by Cosmos, makes a deal with her, offering his own body for the freedom of his daughter's soul, Cosmos quickly accepting as Irmin is considered the strongest and always wishing his body.

As Cosmos invades his body, Irmin burns his own soul, wanting to take Cosmos with him, but she is able to force her escape returning over Celestia, at least having accomplished her dream to destroy Kaenriah.

With Kaenriah falling into the Abyss, even Tempus is unable to stop it, seeing the people start being corrupted by the Abyss, becoming monster. Tempus sacrifices, sealing herself, her own time and with it stopping the time of everyone from Kaenriah, causing them to be able to keep at least their mind and become immortal.

As she is being sealed, she summons, Muninn and Huginn. She sends Huginn to protect Lumine as she is one the biggest targets of Cosmos as she is the only one to break over dimensions and possible reach Celestia, being a danger for Cosmos. huginn later taking another form to guide and hide Lumine from Celestia, Paimon.

For Muninn, she uses him to seal the memories of everyone, everyone forgetting Tempus existance as she knew that they will try to unseal her with any method and that will cause their corruption to restart, truly becoming monster.

Finally, to keep the sealed memories, she uses Skadi's soul, sending her into eternal reincarnations guarding them. Skadi chosing to hide eternally, sealing her memories and everytime that they are unsealed killing herself for a new reincarnation to keep the actual state.

Cryo unable to move and wanting revenge of Cosmos for Skadi and Irmin, knowing that she is unable to kill Cosmos as she is too weak, she creates the Delusions, this ones being crystallations of her own emotions, sacrificing them to create the Delusion that will absorb the souls and strength of the users, slowly becoming stronger. She becomes the Cryo Archon, the Tsaritsa, and establishes the new Snezhnaya around her palace.

Cryo only keeps Joy as it's her love for her husband, knowing that with it, she will never stop her revenge.

The Delusions owner becoming the harbinger.

1. Irmin (Pierro), he is the body without the soul as it has been destroyed by himself as he sacrificed. He barely is able to think or move, only showing momentary reactions falling his instinct. He is not a true harbinger.

2. Dottore (Interest): that has the power of making clons in exchange of the user lifes, a clon that last a year, costing a year of his life. The clons can change places between each other, but if one of them dies, all including the original die. Dottore uses thanks of him being immortal due to an experiment, eliminating the drawbacks, each copy being experimented to face different circumstances. 

3. Columbina (Shame that manifests as pride): the first user is Alloces, the previous Hydro Archon, the actual one being her daughter who she had with a human. The power Columbina is to share their powers and talents to others, Alloces using it on her hydro creations.

4. Sandrome (Fear): the first user was Cryo's servant as the queen, she being a great robot engineer. However, due to the Fear of the Delusion, she tries to eliminate Cryo, beign consumed by it. In the Cryo used a puppy without emotions using the Gnosis as she knows that everyone will fall in Fear of Celestia and try to kill her to stop their wrath. She is able to install the fear like ghost over robots and puppets, making them able to move. Her actual favourite puppet that uses to create more robots to control the fears is Wuyong.

5. Pulcinella (Guilt): he was an experiment of Gold, being a human consumed by the Abyss energy, that's why he is half monster. he was saved by Cryo, deciding to take her Guilt away from her, making all the sins necessaries for Cryo's ambitions his own, becoming the major of Snezhnaya. Guilt is able to stop time of the body, making it unable to be injured or killed, but it could be possible to make feel pain.

6. Scaramouche (Contemp): It has the power to create curses, weaking and killing the rivals.

7. Arlechino (Sadness that manifest as grudge): The first one was one that lost everything due to Pantalone's ambitions, her only objective being killing Pantalone, destroying his money empire, knowing of his almost immortality, she wishes to create one person to surpass Pantalone's money taking his position and Delusion. Her power is Dendro-based, summoning a viny whip that cuts over the sensations of feeling (If hit an arm, the person will think that he is unable to move it, not moving even when it's completely fine), she is also able to plant seed over people's mind, growing as they influence the mind with her own ideas and wishes of revenge, this working far better on children, the children with good potential being seeded, Ellen including in it but as she wasn't nortured, it did not grow much.

8. Signora (Self-Harm): The power is to make the user the contrary of oneself, changing to the opposite element and changing its character.

9. Pantalone (Digust manifested as Distrust): Pantalone only had one user. The power is to manipulate energy, being able to increase stats in exchange of another way of energy, the best one being Mora and also able to create homunculus like people using a huge sum. Pantalone always being the same person, creating different person with his mind and memories. He prefer letting the new clons experience some of grow alone before awaken his memories to create differences and adaptability.

Actually, Pantalone is Aleksei, the previous one being discarded as the body was getting old, also all the Liyue Qixing, hiding his complete monopoly of the world's commerce as a fight between all of his personas.

Keqing is also one of his creations, however, she is special as she doesn't have his memories, she being a representation of his little sister that died due to illness. Everytime, she dying by the same illness and creating a new one and caring for her telling that her mother had died in childbirth, all being the same person. Keqing is Pantalone's obsession and even when he could recreate her without that illness, he can't stop recreating her the same, seeing her die even while trying to cure her illness that's incurable only being able to retrass it.

Pantalone arc will have been the battle of wits between Pantalone and Allen, pantalone wanting to kill him once he saw Allen living the life that he couldn't with a family, friends, and love as Pantalone's little sister died, his lover cheating on him taking his fortune and leaving him bankrupt full of debts before being saved by the Tsaritsa.

The final battle will be Allen against Ningguang who had absorved all the other personas except Keqing. In the end, to save Keqing, Ningguang suicides before Allen, giving her Delusion to Keqing who becomes the new Pantalone but without any of the memories, the Delusion never acting against her.

10. Capitano (Shyness manifested as loyalty): the first one was the bloodied Knight, reaching his end as he discovered the truth behind Kaenriah. His power is to grow stronger based on the troops working under him, a lot of times surpassing the strength capable of lasting to the body and causing to explode. Capitano changes a lot from user, he only moves by his loyalty to the Tsaritsa who gave him an opportunity, that causes anyone who becomes the new Capitano to be devoured by the Delusion as there are too many souls to resist and he gives up his life anytime that he finds an user with a strong ability that he lacks, wanting to strength the delusion.

11 Delusion: Beltrame (Anger manifested as hate): Beltrame's ability is to create cursed chains that once wrapped, nobody is able to run away from them. This one is incredibly important for the Tsaritsa as is capable to block Cosmos, making her unable to escape. The Tsaritsa decided that to make it stronger, the user will not be part of the Harbinger, giving to an enemy as that way, it's easier to control his anger, destroying their lives. The actual user is Diluc, the Fatui controlling his surrounding increasing his hate to the Fatui to make the Delusion become stronger with his anger.