At that point, the assumption is that Marvel would recast and to give the characters an entirely fresh start. Nevertheless, with the multi-verses of comic book storytelling, you can never truly say never, and Famke Janssen’s Jean Grey could pop up when we least expect her. In lieu of that wild scenario, maybe the actress could voice the character in an animated series.
Article source: https://www.cinemablend.com/news/2474588/famke-janssen-might-consider-playing-jean-grey-again