Man, that’s big news. It looks like Robert Downey Jr is set to appear in Captain America 3 as Iron Man/Tony Stark. Whether or not he’s starring in the film versus just “appearing” is yet to be seen. Cap saw Black Widow join him in the second movie, so this could just be another effort to make the Captain America movies feel more epic, by having the Captain pair with another hero. Will the third Thor feature another Avenger as well?