Robert Downey, Jr. will return as Tony Stark/Iron Man . Marvel is reportedly planning to bring in a new team for Avengers 3 instead of the old team of superheroes. Downey Jr.'s Stark is said to be leading the new team in Avengers 3, paving the way for a grand conclusion in another film, which would bring back the original Avengers team for one last time. The Russo Brothers Could Direct 'Avengers 3′ .
