With this Justice League confirmed to be 4 hours long, there will be plenty we haven't seen included in the Snyder Cut. Set to Leonard Cohen's "Hallelujah," the trailer highlights new footage of big bad Darkseid and Superman in an all-black suit, as well as previously-cut storylines for Kiersey Clemons' Iris West and Fisher's Cyborg.
"You're going to see something with Flash in this film that I don't think you've ever seen before," Snyder also teased. "He interacts with time and space, so you may see him do something timely."
What's nowhere to be seen? Superman's CGIed-out mustache.