Warner Bros currently rumored to be in talks with the director of Kingsman: The Secret Service, Matthew Vaughn, to be the director for Superman: Man of Steel 2.
Vaughn teased years ago about being interested in working on a Superman movie and wouldn't go in a Dark Knight series or Man of Steel route in being serious for tone if he had his way.
http://www.gamespot.com/articles/sup.../1100-6448679/