Peacemaker's Season 2 premiere featured a handful of shockers, including that Justice Gang scene that retcons the DCEU. James Gunn assured fans they haven't seen anything yet, that's why he's keeping the season's last three episodes top secret.
James Gunn explained why they only gave screeners for the first five episodes of Peacemaker Season 2 to select audiences. "I am the one who's keeping the three episodes away from everybody because there's too many surprises in those last three episodes," he asserted (per DC Film News on X). Especially 6 and 8, they are just crazy, my favorite things I've ever done of anything." That tracks with Gunn's previous statement about the show's impact on his rebooted DC universe.
Peacemaker Season 2, Episode 1 offered a glimpse of Gunn's long-term vision for the franchise. He established what's DCU canon off the bat when he replaced the Justice League with the Justice Gang, effectively retconning the Season 1 finale's closing moments. Gunn said Season 1 had more inconsistencies he would like to fix, citing what George Lucas did with Star Wars canon. "At some point, I'd love to Lucas the s*** out of it, but right now I don't have the money," he told TVInsider.
James Gunn Wants to Fix More Scenes in Peacemaker Season 1

"Unfortunately I'd have to change too many little things throughout Season 1, and it would cost too much money," he said. "And I'd rather just give that money to a few more CGI shots of superheroes. But I think that we deal with it. We say, canon is really Creature Commandos, Superman, Peacemaker Season 2. I'd love for people to watch Season 1. Obviously, we're changing [the Justice League scene], but we're not gonna go back and reshoot all of it for Season 1, at least not at this point."
That last statement hinted Gunn would eventually fix all of Season 1's plot problems, particularly its ties to The Suicide Squad. Rick Flag, Jr.'s death in that film was referenced in Creature Commandos and Peacemaker Season 1. Amanda Waller also crossed over and was supposed to have her own DCU spinoff show. It's possible Gunn would address all of that in Peacemaker's Season 2 finale, and with pocket universes now in play, anything can happen. Still, he would rather let speculation run wild than risk spoilers leaking.
"It could mean they're terrible," Gunn said (per Games Radar). "That is one option. Or it could mean that there's a lot of major twists and turns in the last three episodes. And even though I'm sending the first five to a select few, things still get out as you know. Things got out already. You know, people who want to search can be spoiled on purpose, but I really don't want what's in those last three episodes to be spoiled. I won't even let my publicist see them. That's the god's honest truth."
New episodes of Peacemaker Season 2 drop Thursdays on HBO Max.

Peacemaker
Release Date January 13, 2022
Network HBO Max, Max
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John Cena
Christopher Smith / Peacemaker
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Danielle Brooks
Leota Adebayo