Marvel is digging into the development work on Doctor Strange, according to Hollywood Reporter, talking to possible directors and writers for the film.  Marvel Studio’s Kevin Feige has confirmed that a Doctor Strange movie will be part of Marvel’s Phase 3 (see "'Doctor Strange' Movie Confirmed”), but the film needs a script and a director. 

Marvel is reportedly talking to four possible directors:  Mark Andrews (Brave), Nikolaj Arcel (who’s been circling several comic-based films, including Fables, see "'Fables' in Development" and at one point, Deadman, see "'Deadman' Movie Gets a Writer"), Dean Israelite (Welcome to Yesterday), and Jonathan Levine (Warm Bodies).

Kung Fu Panda writers Jon Aibel and Glenn Berger are in consideration as a possible writing team, according to the report.