Micheal Keaton's Batman Return in New DCEU?

Micheal Keaton's Batman might be returning in the new DCU, but not in the way you think, join me today as we dive deep into the Flash's trailers and comics to find out, is Micheal Keaton returning?

In the original Flashpoint comics, the Flash wakes up in an alternate reality without his powers, that seems to be happening in this movie, except the that there is another Barry n this universe.

In the comic, Barry goes to Batman, although The Flash finds out Bruce Wayne is dead in this universe, and Thomas Wayne becomes Batman. Also in this movie, Barry confronts Batman to help, to find out that it isn't Ben Affleck Batman but rather, Micheal Keatons Batman.

James Gunn is using this movie to reboot his universe, so my theory is that once the new universe is created at the end of this universe Micheal Keaton will play Thomas Wayne in the DCU and Barry Allen will be the same character but played by a different actor, just like how the movie was supposed to end without the reboot.