Teyonah Parris responded to the question of whether Monica Rambeau will appear in Avengers: Doomsday. She expressed her willingness to continue playing the role and her desire to further explore the character's story, but stated that where Monica appears next is not up to her. This response neither confirmed nor ruled out her participation.
Monica previously gained her powers in WandaVision and later entered the universe where the X-Men reside in The Marvels. Since the X-Men will be involved in Avengers: Doomsday, some fans are hoping the new film will address Monica's whereabouts.
Fans have different speculations about her appearance: some worry that if Monica doesn't show up, the ending of The Marvels will be left hanging; others believe she will still make an appearance in the film. Rumors about surprise characters potentially appearing in the movie persist, but there is currently no confirmed information regarding Monica's involvement.