Vanity Fair reports that Affleck will reprise his role as Batman in the movie version of The Flash opposite Ezra Miller.
Affleck is one of several Batmen in The Flash; Michael Keaton, the Batman of Tim Burton’s two Batman movies of the late ’80s and ’90s, plays a “substantial” role in the film as another Batman.
In an interview, The Flash director Andy Muschietti revealed that Affleck will play the Batman of the DCEU in the movie, which is inspired by the comic book series Flashpoint.
(Likely the Thomas Wayne Batman of the darker, altered timeline if The Flash is in any way faithful to the original Flashpoint comics.)