As of 2025, Marvel Studios has not officially confirmed the production of Iron Man 4, but fan speculation and concept trailers have ignited excitement around the possibility of continuing Tony Stark’s legacy. In one of the most popular fan narratives, Katherine Langford portrays an adult Morgan Stark, grappling with the weight of her father’s impact on the world.

The story envisions Robert Downey Jr. reprising his role in a unique way—as an advanced AI consciousness, a digital echo of Tony Stark, guiding his daughter as she steps into the world of heroism.

In this speculative continuation, Morgan builds upon her father’s technology, creating a new generation of Iron Man armor while facing a rising global threat that demands her to forge her own identity beyond just being Tony Stark’s daughter. With the AI version of Tony acting as a mentor, the film explores themes of legacy, innovation, and the evolution of heroism within the Marvel Cinematic Universe.

While Iron Man 4 remains an unconfirmed project, the idea of Morgan Stark taking up the mantle offers a compelling new direction for the franchise. Until an official announcement is made, fan-made trailers and theories continue to fuel the conversation, keeping the spirit of Iron Man alive in the hearts of Marvel fans.