The Muppets 2 is now set for a March 21, 2014 release. Damon Lindelof and Brad Bird's sci-fi epic 1952 will debut on December 19, 2014. Pirates of the Caribbean 5 will be released on July 10, 2015. And Maleficent has been pushed back from March 2014 to July 2, 2014.
Also worth mentioning, if not surprising: 1952 will be released in 3D, and the previously rumored George Clooney is now confirmed to be starring in the film.
Disney also announced today that Captain America: The Winter Soldier and Guardians of the Galaxy will both be released in 3D. Those films are scheduled for April 4, 2014, and August 1, 2014, respectively.