James Gunn Confirms Superman Sequel Treatment Complete, David Corenswet to Return in DCU Saga

James Gunn has revealed that the treatment for the upcoming Superman sequel is finished, marking a significant step forward in the DC Universe’s storytelling. David Corenswet is set to reprise his role as Superman in this next chapter, continuing the saga fans have eagerly anticipated.

Details on the Finished Treatment and Production Plans

During a recent interview with The Hollywood Reporter, Gunn confirmed that the treatment for the next installment in what he refers to as the ‘Superman Saga’ is complete. He described the treatment as “very, very worked out” and expressed hope to move into production

“not too far away from today.”

Superman’s Role in the Broader DCU Narrative and Connections to Peacemaker

While Gunn did not disclose specific plot details, his comments highlighted Superman’s central role in the connected storyline of the DC Universe. The cinematic timeline he’s constructing links Superman directly to Peacemaker, whose second season is intended to deepen the overall narrative continuity.

It’s a big part, definitely, Superman leads directly into Peacemaker,

Gunn explained.

It should be noted that this is for adults, not for children, but Superman leads into this show and then we have the setting up of all the rest of the DCU in this season on Peacemaker, it’s incredibly important.

Gunn also hinted at numerous returning characters and guest appearances planned for Peacemaker’s upcoming season, reinforcing its role as a cornerstone of the DCU storyline.

James Gunn
Image of: James Gunn

Lots of guest stars coming up, lots of characters that are showing up that we’ve already met in Superman. I don’t think there’s anything that I’ve ever done that I love more than this season of Peacemaker, so I’m so excited for people to see it.

John Cena Highlights the Ongoing DC Universe Connectivity

John Cena, who stars in Peacemaker, emphasized that season two is a continuation rather than a standalone adventure, strengthening the linked DCU plotlines. He noted how this approach contrasts with previous disconnected projects, pointing out how Superman’s story now seamlessly ties into Peacemaker’s events.

I think what you see in season 2 is just a forward of that narrative. That whole DCU through line – it takes the 11th Street Kids through their next adventure, but it also has a lot to do with the DCU going forward.

John Cena, Actor

Superman’s Success and its Implications for the DCU

The original Superman film proved a box office success, earning $589 million worldwide, ranking as the seventh highest-grossing film of 2025. This strong performance sets a positive precedent for the upcoming sequel and the continuing expansion of the DC Universe’s interconnected stories.

Upcoming DC Projects and Release Timelines

In addition to the Superman sequel, James Gunn is also overseeing the release of Supergirl, scheduled for June 2026. Alongside Peacemaker’s current season, these projects aim to build a cohesive narrative through the DCU that appeals primarily to adult audiences.