It seems you won't have to wait until the two-part Avengers: Infinity War to see Robert Downey Jr. return as Tony Stark. The Iron Man actor is reportedly booked to join Tom Holland in Spider-Man: Homecoming. Prior to Downey Jr. locking in the Homecoming appearance, his future Marvel commitments only extended as far as the 2018/2019 Avengers movies. He's also a key player in May's Captain America: Civil War.