I have been hesitant on reporting any news about any superhero movie franchise other than The Avengers bunch because so much of it seems rumor but this appears to be real news.
Zach Snyder will be directing the Justice League movie which will star Ben Affleck (Batman), Henry Cavill (Superman) and Gal Gadot (Wonder Woman). DC plans on filming the movie back to back with Batman vs. Superman and we should see the movie possibly in 2017.
A lot rides on how Batman vs. Superman in my opinion. They are banking on a controversial choice of Batman, following along the popular Christian Bale. They are also following up from a Man of Steel movie that had its own set of problems and not the universal love that DC had hoped. Snyder is not a popular choice right now for some fans and one wonders how he will screw up Justice League. The movie will be heavily compared to The Avengers and The Avengers 2.