The movie was originally scheduled to premiere in July 2016.
The delay follows reports yesterday from Deadline and The Hollywood Reporter that Benedict Cumberbatch (Sherlock, Star Trek Into Darkness) was in final negotiations to play Doctor Strange in the film, after rumored talks with Joaquin Phoenix fell apart. Marvel did not provide any new details on casting today. Scott Derrickson (Deliver Us from Evil) is slated to direct Doctor Strange.
Update: Asked about the Cumberbatch casting report during a q-and-a following the presentation, Marvel Studios president Kevin Feige said, “If it was confirmed, we would have announced it today.”
Update 2: “In the Marvel Cinematic Universe version of the supernatural, that involves everything from quantum mechanics to string theory. The idea of this film is to open up a whole new corner of the cinematic universe. We want to enter, through Strange, the world of parallel dimensions,” said Feige, according to Marvel.