According to Comic Book Resources on March 30, new Warner Brothers CEO Kevin Tsujihara stated that there will be an announcement made in regards to a new DC comic book movie. Of course with the recent success of Kevin Feige's line of his own cinematic universe that lead up to the group lead film "The Avengers", one would have to wonder if a "Justice League" film would wind up following suit.
Tsujihara did mention they'd take more of an aggressive stance when moving forward with the DC Cinematic Universe.
"A film series will be announced in the near future," and that "it is expected to include a 'Justice League' movie." This is following the slate of television programs recently announced by Warner, which include "The Flash" and "Gotham".
Though it may be questionable on whether DC Comics could now even play "catch up" with Marvel Studios, however, Tsujihara does seem to have some credibility as he was able to influence the "Harry Potter" author, J.K. Rowling, to spin-off a three film series prequel from a book entitled, "Fantastic Beasts and Where to Find Them". Such a series would entail a time period in New York City where events had taken place around 70 years prior to Harry Potter's existence in the storyline.
“When I say he made ‘Fantastic Beasts’ happen, it isn’t P.R.-speak but the literal truth,” Rowling told the NYT. “We had one dinner, a follow-up telephone call, and then I got out the rough draft that I’d thought was going to be an interesting bit of memorabilia for my kids and started rewriting!”