In Peacemaker's first season finale, Cena's character met up with the Justice League from the previous film universe, including Jason Momoa's Aquaman and Ezra Miller's Flash. The rest of the team was mostly obscured in shadows and only seen as silhouettes, but Momoa and Miller's presence makes it clear they're likely accompanied by Henry Cavill's version of Superman, who portrayed the superhero from 2013 to 2023. This ties Peacemaker to the old continuity, which again complicates Cena's appearance in .