Given the closeness the character has exhibited throughout the history of Stephen Strange, one would think it's a guarantee she'll return.

Source: https://comicbook.com/movies/news/charlize-theron-clea-doctor-strange-return-unlikely-disappointing-update/

His faith was shaken when he discovered that the Ancient One drew power from the Dark Dimension, and saw Stephen Strange using the time stone.

Source: https://www.cbr.com/mcu-villains-surprise-appearance/

It all comes to a head as the battle for the soul of Stephen Strange begins!

Source: https://www.cbr.com/marvel-comics-october-2023-solicitations/

Stephen Strange (Benedict Cumberbatch) made his MCU debut in as part of Phase 3, and by then, the MCU was already exploring its cosmic side.

Source: https://screenrant.com/mcu-theory-dark-dimension-multiverse-theory/

The role of Sorcerer Supreme in the Marvel Universe has been a thankless job, but Stephen Strange has more than held up his end of the bargain.

Source: https://comicbook.com/comics/news/doctor-doom-doctor-strange-new-sorcerer-supreme-timeless-2023/

We pick things up on a random Saturday, with Stephen Strange and Clea enjoying a relaxing day in bed sipping beverages.

Source: https://comicbook.com/comics/news/doctor-strange-back-from-dead-new-marvel-series-preview/