Even that project doesn’t have a release date until Christmas 2021, though, so don’t expect to see Pitt at your local cinema any time soon (that is, unless you happen to frequent his favorite theater).
Not counting movies that he’s producing through his Plan B banner, Brad Pitt doesn’t currently have any films in development – though there have been reports about him potentially starring alongside Emma Stone in the next film from La La Land/First Man director Damian Chazelle.