Warner Brothers has announced that Ben Affleck will be playing Batman in the sequel to Man of Steel. It's slated to release sometime in 2016.
Here is part of the director's statement statement:
“Ben provides an interesting counter-balance to Henry’s Superman, He has the acting chops to create a layered portrayal of a man who is older and wiser than Clark Kent and bears the scars of a seasoned crime fighter, but retain the charm that the world sees in billionaire Bruce Wayne. I can’t wait to work with him.”