Earlier today, he responded to a fan who asked about the Black Panther movie that is in development.
Black Panther may possibly be one of the movies showcased in Marvel Phase III, so it would make sense to have him pop up in The Avengers 2. Nothing is confirmed at this point, so stay tuned for more details.
Morris Chestnut will be seen in a much different superhero movie this summer, Kick-Ass 2.
Avengers: Age of Ultron comes to theaters May 1st, 2015 and stars Aaron Taylor-Johnson, Scarlett Johansson, Robert Downey Jr., Elizabeth Olsen, Chris Hemsworth, Chris Evans, Cobie Smulders, Jeremy Renner. The film is directed by Joss Whedon.