Keaton— Brooks Barnes (@brooksbarnesNYT) January 2, 2021
Last week New York Times reporter Brooks Barnes profiled DC Films President Walter Hamada. In her article, she confirms that both Michael Keaton and Ben Affleck will reprise their Batman roles in the upcoming Flash film.
Barnes later clarified on Twitter that Keaton will remain an active part of the DCEU and officially replace Affleck as that universe's Batman. RPattz will be considered the Batman of "Earth-2." The multiverse will be introduced in said Flash film to allow for other interpretations of characters to exist and be explored.