As long as that Deity is willing to free up his power, to let those players become RMB players, directly buying countless top-tier equipment and unlimited experience with money, even a few players with deep pockets might quickly be able to surpass Zhou Tian in strength. At that point, such a situation wouldn't be impossible at all.
If the Deity indeed had a plan to use those players to get rid of Zhou Tian, then create another game to cultivate players after those had exited, Zhou Tian's chances of survival would likely be next to none.
Furthermore, given Zhou Tian's usual performance, it wouldn't be surprising if the Deity was willing to get rid of Zhou Tian, a potential threat, just like that.