Amazon MGM Studios does not proceed with a planned “Stargate” television reboot developed by Martin Gero, according to reports from Variety and Deadline. The project was announced with a series order in November 2025 through Prime Video. Gero, who has writing and executive producing credits and previously worked on “Stargate SG-1” and “Stargate: Atlantis,” was set to lead the new series as writer, executive producer, and showrunner. Both outlets report that Amazon decides to end development after the series order, with Deadline describing the cancellation as part of broader changes at Amazon MGM Studios following a leadership or “regime” shift. Deadline and Variety do not cite specific creative reasons for the cancellation, and both frame the outcome as a high-profile casualty of internal decision-making rather than a public-facing change to the overall “Stargate” franchise plans. The two reports indicate the show was pulled without advancing to production, following the earlier commitment to develop it for Prime Video.