There are no specifics on which DC comics character Kevin Costner is being eyed to portray, and its not known if he will be a good guy or a villain. The role will be a key part of the new storyline that Zack Snyder has cooked up with Christopher Nolan and David S. Goyer.
Superman is scheduled to being shooting later this year, which means we'll start hearing various different actors confirmed for this superhero adventure in the very near future.
Man of Steel was released June 14th, 2013 and stars Henry Cavill, Amy Adams, Michael Shannon, Diane Lane, Russell Crowe, Antje Traue, Harry Lennix, Richard Schiff. The film is directed by Zack Snyder.