After assuming the cape and cowl of the Dark Knight in Batman v Superman: Dawn of Justice, Ben Affleck will expand his role in the big screen DC universe. At the Warner Bros presentation at CinemaCon in Las Vegas, the studio confirmed work on a standalone Batman film, with Affleck possibly involved in a role behind-the-scenes.

Onstage, Warner Bros. CEO Kevin Tsujihara confirmed that Affleck is working on a solo Batman film and also appeared to confirm that Affleck is directing; while he didn’t explicitly state that Affleck is writing and directing the movie, Tsujihara listed the actor as one of the “filmmakers” working on the expanded DC universe, along with Aquaman director James Wan.

Affleck is already onboard to play Batman in the upcoming Justice League duology, and rumors have been flying about his participation in a new solo Batman film. Affleck himself told EW that the standalone Batman is “in development.” And last month, his agency told the Hollywood Reporter, “There’s a script that he’s written that is a really cool idea” for Batman. It’s possible that the solo Batman movie could take place before Batman v Superman, before Bruce Wayne went gray-ish. No word on the standalone Batman release date just yet.