Can God Fit Into a Many-Universe Hypothesis? Building off this thought, could God or a god exist in a many-universe hypothesis? Could one universe have Buddhism to be the major (and very real) religion, but in another universe, God exists to rule over that universe? Or—if there is a deity—if it exists in one universe, must it exist in all universes as well? But would that then take away from the idea of many universes in the truest sense of the idea—that there must be a universe where a god exists and another where it does not? — Play-doh
Getting back to your main question, I don't think there could be. One reason being that many conceptions of God are contradictory. For example, if the Judeo-Christian God is
the God in any universe, then they must be
the God of all universes. If that were the case, then the Hindu gods could never exist in any universe UNLESS God, for whatever reason, decided to create a Pantheon of lesser gods. In any case, there would still be the one highest God.
I see where your thought process is going though; if there are an infinite number of universes, then there should be infinite possibilities. For example, there could be a universe where the two of us were both Batman, and we had to fight it out to see who gets to marry the Joker. So why wouldn't it be the same for the divine? Wouldn't there be different divine rules in different universes?
I think the major 'problem' of your reasoning is which comes first, the universe or the God? If the universe comes first and the universe produces a divine aspect of itself, then yeah, I think there could any combination of true religions depending on what universe you're in. But if you believe that God comes first and then creates the universe(s) then no, there can only be one (or many if you're into that) over all universes.