Geoff Johns penned the pilot for the upcoming "The Flash" series, serves as producer on it, and is an executive producer on "Batman v Superman: Dawn of Justice". He essentially has his hands all over how DC Comics properties are about to be translated to the big and small screen.
Appearing at the Television Critics Association panel this week for "The Flash," he confirmed something that quite a few still had doubts about - that the DC Cinematic Universe (ie. "Man of Steel" onwards) and the TV versions of DC properties are NOT part of the same screen universe and thus not open to crossovers.
That doesn't necessarily mean we'll get our own Arrow/Flash version of Batman or Superman either. Those big guns are being saved for the films alone:
"You'll see a lot of DC universe characters [on The The Flash and Arrow]. You won't see Batman or Superman. We're on production on Batman v Superman now. So you'll see characters like The Atom or Firestorm, but no not Batman or Superman right now [on TV].
It's a separate universe than film so that the filmmakers can tell the story that's best for film. While we explore something different in a different corner of the DC universe. We will not be integrating the film and television universes."
This seems to put to rest talk of actors Stephen Amell and Grant Gustin appearing in the proposed "Justice League" film in development at Warner Bros. Pictures. It also opens up the possibility of The CW moving forward with "Amazon," a series about a young Diana Prince (aka. Wonder Woman). The CW head Mark Pedowitz says he's still quite open to the idea despite a previous iteration failing to work:
"If she is and we can get the right script we will do it. One of the nice things is that a lot of the other broadcasters and cable networks have done comic book characters based on the success of Arrow. So for our purposes, it is a rich source material, we know what the mythology is, and if you have the right superhero character you go for it."
Source: Bam Smack Pow