That’s why the internet collectively paused this week when whispers began circulating about Famke Janssen possibly returning as Jean Grey in the upcoming Avengers: Doomsday.

Nothing is confirmed. No official Marvel announcement. No casting reveal. But the idea alone is enough to make fans sit up a little straighter.

The speculation comes from a claim by a veteran X-Men writer, who suggested that Janssen’s Jean Grey could be part of Marvel’s multiverse plans as the MCU moves deeper into its mutant era. The report, first highlighted by IGN, has since reignited conversations across fan communities about legacy characters, emotional continuity, and unfinished arcs.

For many viewers, Famke Janssen is Jean Grey. Her portrayal in the original X-Men films defined the character for an entire generation; powerful, tragic, and quietly haunting. If Marvel is indeed preparing a multiversal collision in Avengers: Doomsday, bringing her back wouldn’t just be fan service; it would be a full-circle moment.

At the same time, it’s important to stay grounded. Janssen herself has previously said she hasn’t been contacted, and Marvel Studios is famously silent until it’s ready to make noise. For now, this remains speculation, an exciting, hopeful speculation, but speculation nonetheless.

Still, in a cinematic universe built on surprises, emotional callbacks, and impossible reunions, the idea doesn’t feel far-fetched. If Avengers: Doomsday is meant to be a convergence of timelines, legacies, and eras, then Jean Grey’s return would hit straight in the heart.

Until Marvel speaks, fans can only wait, imagine, and quietly hope. And sometimes, in the MCU, that hope is exactly where the magic begins.