A bunch of media outlets recently got to visit the set of Justice League, Zack Snyder's Batman v Superman: Dawn of Justice follow-up, and there's a lot of takeaways out there—one of the biggest is certainly the villain reveal. Steppenwolf (the bad guy; not the band) will menace the superhero crew in the November 2017 flick. A deleted Batman v Superman scene previously hinted at this.
Here's what the knowledgeable folks at ComicBook.com have to say about Steppenwolf:
"An uncle to Darkseid, Steppenwolf is one of the despot's most trusted lieutenants. He's been killed and resurrected more than once, the first and most notable time after he assassinated the wife of Izaya, the Highfather of New Genesis and Darkseid's opposite number. Steppenwolf's sister, Heggra, was Darkseid's mother, until she was killed by her husband. The villain is generally depicted as the great military mind behind Darkseid's forces."
The site also learned that Justice League will be less dark, "more inclusive" and will "appeal to a younger audience." Vulture's report from the set visit has Snyder saying, "I do think that the tone of Justice League has changed because of what the fans have said.”
Lastly, it sounds like Justice League has been downsized from a two-part movie to a single film, likely with a standalone sequel.
Update: Ben Affleck shared the movie's logo:
Next up, check out these awesome cosplayers from New York Comic Con 2015: