The film will supposedly introduce the Shi’ar Empire, a group of powerful aliens who decide to end the Phoenix Force once and for all.
Xavier has a romance with the Shi’ar’s empress Liliandra, but seeing as how that character is reportedly a villain in the film (with Jessica Chastain rumored for the part), it remains to be seen if McAvoy will be able to get his flirt on.
Not too much is known about James McAyoy’s role in X-Men: Dark Phoenix just yet but the film will adapt the classic X-Men storyline from the comics, wherein Jean Grey is possessed by a cosmic entity called the Phoenix Force, drastically boosting her powers and sending her on a rampage throughout the galaxy.