Surprising swaps were made between “Guardians of the Galaxy 2” and “Deadpool“.
Canonically “Deadpool”‘s Negasonic Teenage Warhead (Brianna Hildebrand) had psychic abilities. Director, Tim Miller, as well as screenwriters, Rhett Reese and Paul Wernick, desired Negasonic to have her powers suit her name and in order to do that they needed permission from Disney’s Marvel Studios.
Marvel Studios ended up getting Ego, the Living Planet out of the trade for Negasonic’s power. Originally Ego was introduced in a Thor comic, but the planet’s state of origin was told through the Fantastic Four comics- linking the planet to Fox.
With this Fox/Marvel swap unearthed, we can only imagine what other swaps have or will happen. For instance, Sony and Marvel swapped Spider-Man to become an Avenger, as long as Disney produced and helped pay for the solo Spidey films.