Curvature Engine

"The only flaw is that Dormammu won't overstep into other universes for the next century. This means that at the nodes originally arranged in Strange's destiny, Dormammu's role will be replaced by other Dimensional Demon Gods." That would be bad news for the future Doctor Strange. After all, Dormammu was considered relatively weak among the many Dimensional Demon Gods. If he was replaced by top-tier multiversal gods like Chthon or Cyttorak, Strange would have plenty of suffering ahead of him.