Looks like Iron Man and Cap might just face off in Captain America 3!
Taken from superherohype.com:
Breaking: Marking a major twist to the Marvel Cinematic Universe’s “Phase Three,” Variety is reporting that Robert Downey Jr. is close to joining the cast of Captain America 3 as Tony Stark and that the film will launch elements of the hit comic book crossover event, “Civil War” in the MCU!
The news comes on the heels of an announcement from Marvel this morning that a new “Civil War” comic book is on the way next summer.
Just last week, Downey hinted that something big was on the way, although it was briefly believed that he was referring to a fourth Iron Man film. Now, it seems quite likely that Marvel Studios has even bigger plans for Iron Man!
Anthony and Joe Russo, the sibling director pair behind Captain America: The Winter Soldier, are directing the May 6, 2016 film, which features a screenplay by Christopher Markus and Stephen McFeely and, of course, the return of Chris Evans as the star-spangled superhero.