At the conclusion of Iron Man 3, Robert Downey Jr’s portrayal of Tony Stark seemed to be all wrapped up, but recent remarks by Downey himself seems to be leaving the door open for a return.
The Avengers 2: Age of Ultron
Scarlett Johansson Talks Avengers 2
Scarlett Johansson recently spoke with Parade Magazine and although she did not reveal any secrets she did speak a little about The Avengers 2: Age of Ultron and what she thought about the script Joss Whedon wrote.
Reggie's Take.com 