In short nothing.

But MAGA was built on conspiracy theories and their messianic leader isn’t looking so messianic. If the Epstein files aren’t released to confirm their belief in a Democrat deep state sex trafficking pedophile ring then what was it all for? And questioning their beliefs or any kind of introspection is impossible for them. Either a new leader will be chosen, Trump smooths things over with them, or MAGA fractures into various factions.