HitFix is actually stating it's a done deal and explains how Aquaman will be introduced, which was previously rumored and speculated as well.
According to the report, Aquaman isn't too happy with what went down in Man of Steel regarding the World Engine and its affect on the Indian Ocean.
It's said Aquaman will have a small appearance in Batman vs. Superman leading into a larger role in Justice League, and that Zack Snyder has already finalized the character designs so filming can begin soon.
Jason Momoa has also been rumored for Martian Manhunter, with Matt Damon said to be wanted for Aquaman.
In a previous report about the upcoming slate of DC Movies, it was said Aquaman would not be featured in Batman Vs. Superman, but Martian Manhunter is supposed to be.
If the Jason Momoa casting is true, Zack Snyder will have taken Aquaman in quite a different direction, which can only be compared to the casting of Johnny Storm/The Human Torch in the new Fantastic Four movie with Michael B. Jordan.
Both Aquaman and Human Torch are blond white characters in the comics that have been around for decades.
"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 Snder as well.
For more news on the "Man of Steel" and related movies head on over to the Cosmic Book News Superman movie hub.