Is Chadwick Boseman Already Black Panther?

Everybody knows that Marvel's at the top of the film world right now, and fans are hungry to learn what's next, even if it means piecing together the tiniest details. There's another Avengers coming next summer, introductory movies for Ant-Man and Doctor Strange, a third Captain America and a second Guardians Of The Galaxy. Beyond that, who knows? Could Black Panther be next at bat? And is Chadwick Boseman involved? Boseman was doing promotion for Get On Up recently on The Breakfast Club (via Fl...