Wonder Woman's origin in Batman v. Superman: Dawn of Justice has been confirmed.
Batman v. Superman: Dawn of Justice producers Charles Roven was the subject of an interview of "The Hollwood Masters" series at Loyola Marymount School of Film and TV.
During the interview, Roven described, in detail, the difference between the world of The Dark Knight Trilogy, and that of the shared DC Universe begun in Man of Steel.
I don't think it's a secret that it's called Batman v. Superman: Dawn of Justice. Warner Bros. has announced a number of DC properties that are going to be made over the next five years, including Justice League.
The biggest difference between what Chris [Nolan] did in The Dark Knight Trilogy and what we're doing now is that Bruce Wayne, Batman, lived in what I called a closed universe, in that there were no superheroes in it. There's Batman, and he is a human being, and Bruce Wayne has taken himself and made himself - in many ways, even though he's definitely got some dysfunction - he's made himself into, in many ways, the best a human being can be intellectually, in terms of his ability to be a detective, physically, etcetera. But he's real. He's human, he's a human being. He has no superpowers.
When we embarked on Man of Steel…one of the things we were doing was we were created a universe that had a superhero in it, because Superman is clearly a superhero, he has superpowers. So once we did that, it was with the knowledge that, if the movie was successful and we expanded the universe, we were going to expand it and populate it with other, like characters.
In his final comments, Roven mentions Wonder Woman, and confirms her origin as the daughter of Zeus.
Wonder Woman's in it. We know that. She has powers, she's a goddess. She's a demigod. Her father was Zeus.
This would seem to lay to rest any other rumors about Wonder Woman's origin in the film, including the one about Amazons being remnants of Krypton.
Batman v. Superman: Dawn of Justice opens March 25, 2016.