20th Century Fox has announced a released date for the sequel to X-MEN: FIRST CLASS - July 18, 2014. This makes four Marvel movies to be release that year including:
CAPTAIN AMERICA 2
THE AMAZING SPIDER-MAN 2
one that hasn't been revealed...yet
All that is known at this time is director Matthew Vaughn will return. The assumption is James McAvoy, Michael Fassbender, January Jones, Nicholas Hoult, Caleb Landry Jones, Jennifer Lawrence, and Lucas Till will return. Expect some more news about this sequel and the mystery movie at the San Diego Comic-Con in July.