Let's say that science proves that God exists

[Esquilax]

Such a discovery wouldn't tell us much about the nature of the Creator. It would mean theists worldview is correct while atheists worldview is incorrect. It would be a huge blow to atheists but I agree the debates would continue.

Not really. The discovery of a disinterested god would mean that each individual theist is just as wrong as any atheist... or at least, any antitheist. Because, at least in my agnostic atheism, the position has never been that there's no god, just that there's no respectable evidence for one yet. The thing about finding scientific evidence for god would be that... well, that would be evidence. It'd literally be exactly what was needed to change our minds.

Since the atheist worldview has only ever come down to "believe in things that are factual," we'd hardly be incorrect so long as we began to believe when god becomes something factual.

This disinterested god that, even when proven, doesn't yet belong to any religious denomination.