What other R rated Marvel movies, if any, Iger is referring to remains to be seen.
It remains to be seen how Marvel Studios will handle the X-Men and Fantastic Four properties when the Disney/Fox deal finally closes.
Iger noted however that the studio would have to be very careful in their branding of the films, citing a need to make sure that the films are properly marketed as being R rated.
Now that Marvel’s first family and the “children of the atom” have returned to the house of ideas, that possibility could become a reality.