This film opens the door for at least six other new movies or series (spoilers)
- The Fantastic Four (Mr Fantastic)
- The X-Men (Professor X)
- The Inhumans (Black Bolt)
- World War Hulk (The Illuminati)
- Doctor Strange 3 (Clea)
- Young Avengers (America Chavez)
That has to be a new record for Marvel, in terms of using one film as a springboard for new content.
I'm not a fan, to be honest ... I find it distracting, like product placement. A single post-credit scene for a sequel is enough.