Although Justice League was only just confirmed to be directed by Zack Snyder, we’ve already got a release date rumor. According to Latino Review, Justice League is expected to follow-up 2016’s Batman vs. Superman on May 5th, 2017.
This would add some weight to the rumors and speculation that Snyder will shoot Batman Vs. Superman and Justice League back to back, and does make sense.
We’ll likely find out more at SDCC I hope.
UPDATE: The Hollywood Reporter’s Borys Kit’s says the back to back part is true and 2017 is likley!