There are multiple eras being portrayed in the upcoming Wonder Woman film, and Steve Trevor, played by Chris Pine, will be resigned to the past in the film. But a new rumor from Heroic Hollywood says everything may not be quite as it seems, and while Pine is playing a role in the past, he could also play a role in the present.
Borrowing from Dwight Latham and Moe Jaffe's 1947 hit "I'm my own Grandpa," the rumor says that Steve Trevor will be in the present-day story, and that in the World War One part of the film, Chris Pine is playing Trevor's grandfather. So he's playing both roles there.