Chris Pine has entered negotiations with Warner Bros. to play Steve Trevor in the studio's stand alone Wonder Woman adventure. Gal Gadot will make her debut as Wonder Woman in Batman v Superman: Dawn of Justice, which will reportedly also introduce the rest of the Justice League, before the Wonder Woman movie hits theaters June 23, 2017. Warner Bros. would not comment on the casting news at this time.
It's worth noting that there was a rumor circulating last month that Scott Eastwood is playing Steve Trevor in Suicide Squad, although his role in that superhero adventure was never confirmed. As it turns out, Scott Eastwood was given the choice to either test for the role of Steve Trevor in Wonder Woman, or take the guaranteed supporting role in Suicide Squad, which he ultimately chose. There is still no word on who the actor is playing in Suicide Squad. No story details have been confirmed for Wonder Woman, but this project is said to be an origin story, although it isn't ultimately clear when exactly the story is set.
There were rumors that, in Batman v Superman: Dawn of Justice, Wonder Woman would be hundreds of years old. If the Wonder Woman movie truly is an origin story, it could be set several centuries ago, giving fans a glimpse of how Wonder Woman came to be, before bringing her story back to present day in Justice League Part 1 and Justice League Part 2. Naturally, none of this has been confirmed, but with the cast starting to come together, hopefully more details will be revealed soon.
Patty Jenkins (Monster) is directing Wonder Woman from a screenplay by Jason Fuchs (Pan). Batman v Superman: Dawn of Justice director Zack Snyder is producing, with Charles Roven serving as executive producer. Chris Pine most recently starred in Into the Woods, and he will next be seen in Z for Zachariah and The Finest Hours later this year. He is also set to reprise his role as Captain Kirk in Star Trek 3, which goes into production this summer.