As we can recall from a post-credits scene for ‘WandaVision’, Wanda was researching the Darkhold when the voices of her two sons from other dimensions or universes called for help. It is likely that these two characters will be directly related to the plot of Shuma-Gorath and his search for America Chavez.
Perhaps gradually, we will know more details surrounding the movie, as other Marvel projects are released. Still, a chase from Shuma-Gorath would certainly tie both America Chavez and Wanda Maximoff into a storyline that leads them directly to Doctor Strange.
‘Doctor Strange in the Multiverse of Madness’ is slated to hit theaters on March 25, 2022.