James Gunn Confirms Work on Superman Sequel with Early Development Updates

James Gunn has officially confirmed that he is working on a sequel to his Superman film, following his successful introduction of the character in the new DC Universe. On August 16, 2025, Gunn shared insights about the sequel’s development, revealing that he has completed a 60-page treatment that includes full dialogue. This extensive treatment is being turned into a script as Gunn plans the timeline for shooting, with a promise that the sequel will arrive sooner than expected. Additionally, Warner Bros. Discovery CEO David Zaslav provided more details in a recent earnings call, emphasizing Gunn’s involvement in the next major ‘Super-Family’ movie. While the exact release date remains unconfirmed, the sequel is expected to fit into the broader DC Universe timeline, likely releasing after projects like Lanterns and Clayface, but before the upcoming Supergirl movie, slated for June 2026. Fans are eager to see how the Superman sequel will build on the foundation laid in the first film, with many speculating that Gunn’s treatment will take the character in new and exciting directions.