I doubt Wanda interacts with her at all in Avengers 4.
Wanda's gonna be onscreen for 3 minutes, and only interact with emotionless but able to remember emotions Vision, and Hawkeye (who will be the one who stops her chimping out and killing herself when she comes back).
MCU Carol is based on Captain Marvel, not Ms. Marvel (who had a friendship with Wanda), Nu Carol has more in common with Nat and Hope.
Wanda is the sort of woman Nu Carol , a millitarist, fucking hates.
Note how they are emphasising Carol's relationships with Rambeau and other females, and of course Feige hinting at Kamala.
Carol will be hailed a hero after Avengers 4, Wanda won't. Wanda will retire probably, and go back into hiding.