Theres a rumor buzzing around the Net that Marvel Studios is planning on introducing characters to moviegoers via short films in front of their features:
The rumour was leaked by a well trusted source that Marvel/Disney are looking at doing 10 minute short films in front of their feature length movies that will introduce secondary characters like Black Panther, Luke Cage, Dr. Strange, etc.
I have no other information on this so far, so we have no idea what movie they plan on starting this with (I'm thinking the Avengers maybe?) or what character(s) they plan on introducing first.
Its a damn interesting idea though!