Well Marvel fans, guess we’re gonna have one last run with seeing Tony Stark on the big screen. According to Deadline, Robert Downey Jr. will appear in Black Widow!
“Downey will be seen in the role of Stark one more time, however, in the Marvel prequel Black Widow in May 2020.”Geoff Boucher
This makes sense since Black Widow takes place after the events of Captain America: Civil War. I don’t believe that Robert Downey Jr. will return to film a scene for Black Widow, but they could use a deleted scene from Captain America: Civil War. Curious to see how big of a role the scene will play in the movie. This could be our last time seeing these two characters on the big screen, so it’s bittersweet.