Recent reports from multiple MCU insiders indicate principal photography on Avengers: Secret Wars has slipped from a planned November 2026 start to January 2027, compressing the post-production window to roughly 11 months ahead of the December 17, 2027 release. This follows Disney’s earlier 2025 slate reorganization that already pushed the film from May to December 2027, and it echoes the extended schedules seen on Avengers: Doomsday. The tight timeline has fueled trader speculation about a further delay, especially given the film’s scale and the Russo brothers’ overlapping post-production duties. With no official confirmation from Marvel Studios and some reports noting that a slip is not inevitable, the market remains closely balanced as traders weigh insider momentum against the possibility of accelerated or pre-shot footage.