This storyline could explore themes of redemption, identity, and the nature of power. It could delve into the internal struggle of Dormammu as he grapples with his newfound humanity and cosmic abilities. The Marvel heroes, particularly Doctor Strange, would face a unique challenge in dealing with a transformed Dormammu, as they would have to navigate both his human side and his overwhelming power.

Introducing Dormammu as a human with cosmic power would open up a plethora of storytelling possibilities, allowing Marvel to explore new dimensions of the character while maintaining the core elements that make Dormammu such a formidable antagonist. However, it’s important to note that as of my knowledge cutoff in September 2021, there have been no official announcements or indications from Marvel Studios regarding Dormammu’s future appearances or transformations. So, this scenario remains purely speculative at this point.

Redemption Arc: The transformation into a human could lead Dormammu on a path of redemption. Realizing the consequences of his past actions, he might seek to atone for his sins and use his cosmic power for good. This could involve teaming up with the Marvel heroes to combat a common threat or protect the multiverse.

Cosmic Conquests: As a human with cosmic power, Dormammu might embark on a quest to explore and conquer other dimensions and realms. This would allow Marvel to showcase new and exotic locations within the multiverse, as well as introduce other cosmic entities or interdimensional beings who oppose Dormammu’s ambitions.

The Ultimate Villain: Dormammu’s transformation could elevate him to the status of a major cosmic-level threat in the Marvel Cinematic Universe. His cosmic powers combined with his human intellect and resourcefulness could make him an adversary capable of challenging not just individual heroes, but entire teams such as the Avengers or the Guardians of the Galaxy.

Multiversal Balance: With his newfound understanding of humanity, Dormammu might recognize the delicate balance that exists within the multiverse. He could become a guardian or protector of the multiverse, working to maintain equilibrium and prevent catastrophic events from unfolding across different dimensions.

Clash of Cosmic Forces: Dormammu’s transformation could draw the attention of other cosmic entities and beings, both allies and enemies. This could lead to epic battles and alliances between powerful cosmic beings like Eternity, the Living Tribunal, or even the Celestials, amplifying the scale and stakes of the conflicts in the Marvel universe.

It’s important to note that these are just potential directions that Marvel could explore if they decide to take Dormammu’s character in this direction. As with any speculative storyline, the actual narrative and details would ultimately depend on the creative choices made by the writers, directors, and producers involved in the Marvel Cinematic Universe.