This really stinks as I thought Ben Affleck was outstanding in the role.
According to The Hollywood Reporter
Warners’ film studio chief Toby Emmerich tells The Hollywood Reporter, "Ben is our Batman. We love him as Batman. We want to keep him in the cowl as long as we can." And Matt Reeves, who will direct the studio’s still-undated (and unwritten) The Batman, has said that he means to keep Affleck in the role. But a source with knowledge of the situation says that the studio is working on plans to usher out Affleck’s Batman — gracefully, addressing the change in some shape or form in one of the upcoming DC films.
Exactly when and how that might happen has yet to be determined, but it would be wise to bet against Affleck starring in The Batman. He has already stepped away from directing the film and Reeves is dropping the script that Affleck wrote with D.C. Entertainment’s Geoff Johns.
Guess we have to wait and see what happens next.