Season 2 address that DCEU Justice League cameo in the final episode of Peacemaker: Season 1? Is there some multiverse realignment given that Season 2’s storyline involves a parallel dimension? The answer,

Peacemaker season 2 episode 1 retcons a big moment from last season's finale – and it needed to for storytelling reasons.

Battered and bloodied after just barely saving the world from an alien invasion, anti-hero Peacemaker (John Cena) and his surviving teammates are headed away from the battlefield to get medical treatment when the Justice League finally arrive, too late to help.