Now while appearing on the Jimmy Kimmel show, Jason Momoa basically confirms the role.
Kimmel brings it up that Jason Momoa has been said to be cast as Aquaman, with Momoa stating it's all just rumors, but asking the crowd if they would like that, and if they would like to see him wearing the green Aquaman leotards.
Check it out:
"Batman v Superman: Dawn of Justice" has a newly announced May 6, 2016 release starring Ben Affleck as Batman, Henry Cavill as Superman, Gal Gadot as Wonder Woman, Amy Adams as Lois Lane, Laurence Fishburne as Perry White, Diane Lane as Martha Kent, Jeremy Irons as Alfred, Jesse Eisenberg as Lex Luthor, Ray Fisher as Cyborg with Callan Mulvey, Holly Hunter and Tao Okamoto in new character roles for the film. "Justice League" is to follow directed by Zack Snyder.
For more news on the "Man of Steel" and related movies head on over to the Cosmic Book News Superman movie hub.