According to the The Wall Street Journal on Sunday, it has been confirmed by Warner Brothers President of Worldwide Production Greg Silverman that "Man of Steel's" Zack Snyder will be directing the "Justice League" movie project. It's also been confirmed that a script is in the works and Ben Affleck, Henry Cavill, and Gal Galdot will be returning for the DC Comics team up.
At this time, there is no release date, however one cannot expect the film to be released before 2018 which puts this two years after "Batman vs. Superman". Also, Silverman stated the following, “It will be a further expansion of this universe. Superman vs Batman’ will lead into ‘Justice League". Nothing was mentioned in regards to other characters in the "Justice League Film", however, Broadway actor Ray Fisher has been cast as Cyborg in the DC Cinematic Universe.
It is known that Aquaman, Flash, and Green Latern are currently members of the "Justice League" comic books. Ryan Reynolds appeared as Kyle Rayner in a previously released "Green Latern" film, which didn't do very well at the box office. However, there was a "Green Latern" film outside of the one that was already released that was in the works and was to be directed by George Miller of the "Mad Max" realm, but was quickly scuttled in 2008. Also, another big box office flop was DC's "Jonah Hex" starring "Goonies" Josh Brolin, John Malkovich of "Being John Malkovich", and the upcoming "Teenaged Mutant Ninja Turtles" Megan Fox.
It seems that DC is trying to get competitive with the Marvel Cinematic Universe by creating their own and writer David S. Goyer mentioned he would like a cohesive universe, but mentioned that it's just too early and doesn't think anyone should try to emulate Marvel Studios' methods.
"Batman vs. Superman" opens in theaters come May 6, 2016.