It was also reported back in August that in Justice League’s original ending, Steppenwolf was serving as the Silver Surfer to Darkseid’s Galactus, and with Justice League ending on a cliffhanger, Justice League 2 would have seen Darkseid coming to Earth and battling Batman, Superman, Wonder Woman, Flash, Aquaman and Cyborg (and any other potential new recruits) himself.
Ideally we can still get this, though with Justice League’s post-credits scene showing Lex Luthor and Deathstroke deciding to form a league of their own, that nefarious group will potentially fill in as Justice League 2’s main antagonists if the sequel does move forward.
Earlier this year, Darkseid was rumored to have a “presence” in Justice League, and we recently learned that in an earlier cut of the movie, Steppenwolf would have tried to tempt Superman into joining his army, and during this vision, we would have seen Darkseid and snippets of Batman’s Knightmare.