James Gunn himself has admitted that while Peacemaker is almost fully canon to the DCU, there are a few plot points, character cameos, and running jokes that remain exceptions. With the success of 'The Batman' and Gunn's 'The Suicide Squad,' it seems the DCU is attempting to clean up their continuity issues. They've had some great projects, but their story is not always cohesive like Marvel.
In season two of 'Peacemaker,' the storyline includes some great cameos and references. However, Gunn has made contrasting statements about how canon Peacemaker is within the DCU. Initially, it was said Peacemaker takes place after Superman, but recent comments suggest season 1 is entirely in canon, despite cameos from actors like Jason Momoa as Aquaman and Ezra Miller as the Flash at the end of the first season seeming contradictory.
In an interview, Gunn mentioned that the canon DCU begins with 'Creature Commandos,' followed by Superman, then season 2 of Peacemaker. Past rumors suggested the DCU canon would be wiped due to Marvel's success and DCU's inconsistent approach to continuity. Gunn has since clarified that most of 'Peacemaker' is canon except for the original Justice League's inclusion in season 1.
In season 2's opening, the Justice League is replaced by the 'Justice Gang,' with notable changes to characters. Wonder Woman, Flash, and Aquaman, among others, are replaced by Green Lantern, Hot Girl, and others, preserving continuity.
Shaun Gunn joins the DCU cast as Maxwell Lord, a character bringing new angles even as past versions have varied. This inclusion hints at potential connections to future DCU projects, such as the Blue Beetle. Characters like Green Lantern are given significant focus, maintaining continuity with the 2025 Superman film.
The introduction of multiverses in the DCU creates new narratives and connections within Gunn's universe, setting the stage for more complex storytelling. Season 2 reveals Peacemaker exploring multiverses and meeting alternate versions of familiar characters. It raises questions on which elements truly align with the new DCU canon.
With the mention of Gotham and speculation about Peacemaker's Batman, the narrative strategy appears to be aimed at strengthening DCU's continuity to parallel the Marvel Universe. As fans await resolution of the continuity issues and anticipate future character appearances, the potential for evolution within the DCU leaves much room for intrigue.