Black Panther

WHO
Written by Mark Bailey
Directed by ???

42's Chadwick Boseman as T'Challa, or the Black Panther. His quick rise to fame following 42's release caught Feige's attention and he is set to appear in the movie.

No other casting info yet.

WHAT
Not a lot of info here either. It will be his origin story though. He is the Prince of a fictional African country Wakanda, and sets out to stop crime using a metal known as vibranium (the same metal Captain America's shield is made out of). He's been aptly described as an African Batman. White Iron Man is Batman's real Marvel equivalent, Black Panther's just a really badass African version of the Dark Knight. He is a key Avenger and may appear in Avengers 2.

WHEN
2014. That's all we know for now. 

No further info right now. Stay tuned.