Marvel is reportedly already planning a sequel to The Fantastic Four: First Steps, despite the upcoming blockbuster still being more than a month from launch. A Variety report states that an untitled Fantastic Four follow-up is one of several currently undated Marvel projects in development,

Marvel Studios recently added a fourth movie to its busy 2028 slate, and a new report suggests one of the possibilities is a sequel to The Fantastic Four: First Steps. We also have a Secret Wars

We already knew Giganto would be part of the parallel universe that The Fantastic Four inhabit before they cross over into the MCU (more on this shortly). Indeed, Giganto features on the cover a forthcoming First Steps prequel comic book that acts as an origins story for the titular team and how they acquired their superpowers.