random film idea, trope speculation, perhaps a prophecy, spoilers for Russian Doll
I think it's safe to say we've pretty much exhausted the basic Groundhog Day infinite timeloop trope.
So the next phase is going to be finite loops. The hero _thinks_ they're going into an inexhaustible loop, but they find out that it's decaying.
We've already seen this start to happen. Russian Doll and one of the Xmas episodes of American Dad (I know, I know) come to mind. I think there are others.
But the _next_ revisionist genre phase after that: someone else has already gotten their hands on the mechanism. The loops are handed out by some intractable authority and the protagonist must "earn" more by doing something morally compromising.
It's coming. The math is flawless. :3