In a wide ranging interview with the Toronto Sun, Flash actor Ezra Miller and Wonder Woman star Gal Gadot spoke about who they would like to see the Justice League face next in a potential sequel. After facing Steppenwolf in Justice League, the natural expectation would be fore Darkseid himself to attack the Earth next. However the pair went a different direction, naming the Injustice League and Cheetah as who they would like to tangle with next.
"I think I can speak for everyone in the League when I say that we’re extremely excited by the prospect of continuing this journey," said Miller. He continued, "We don’t really know for sure, and we’re usually the last people to find out, but … each of the heroes in this movie has specific nemeses, and I think seeing some incarnation of the Injustice League (which includes Lex Luthor, Joker, Deathstroke and more) would be something that DC fans would be pretty stoked about."
Gal Gadot stated that she wants Wonder Woman to face her arch nemesis next. Is she thinking about Justice League 2 or the Wonder Woman sequel? "There’s so many good villains in the DC universe, but I would love to fight Cheetah. She’s a girl and that could be very interesting."
Up until this point, the MCU has avoided pitting The Avengers against a version of the Masters of Evil in each of their Phase close-outs, although it's rumored a version of this nearly happened in Zak Penn's script for the first Avengers feature film. Fans have long stated that the DC Films Universe needs to focus on its villains as a way to avoid inevitable comparisons to the Marvel Cinematic Universe and bringing the Injustice League to life would certainly be a step in that direction.