It is possible that Carol Danvers will be introduced to the Avengers by Scott Lang after she helps him to escape the Quantum Realm.
Avengers: Endgame action figures reveal Iron Man and Captain America in their rumored Quantum Realm suits.
In the latest Avengers: Endgame toy leak, we see Iron Man and Captain America in what many are calling their Quantum Realm suits.
Nick Fury actor Samuel L. Jackson recently revealed that Carol Danvers has time traveling capabilities, which is probably why she doesn’t have a special Quantum Realm suit.