He’ll be appearing in The Flash, where Michael Keaton will make his first appearance as Bruce Wayne/Batman in 30 years. This now though appears to be not the only place the OG Batman is going to show up.
Keaton has been added to the cast list for the upcoming Batgirl film releasing on HBO Max, according to a press release Warner Bros. posted on their media site which included a preview of upcoming films set for premiere in 2022.
The film is currently in production in Scotland.
It’s not clear how Keaton is going to fit into this movie. The narrative fluidity of The Flash may open the possibility. All I can tell you is, if Keaton’s Batman is in it, I’m going to watch it.