Crucially. unlike Wolverine, who through his regenerative abilities and lengthy lifespan can only really be played by Jackman, killing Professor X needn’t be the end of his character.
The (very loose) Old Man Logan comic book adaptation also features Patrick Stewart’s Professor X in grizzled, aged form providing moral advice to the wandering Wolverine once more.
Logan is set in the year 2024, while we last saw young Charles in 1983, so there’s plenty of time to fill.
Jackman’s not the only old guard X-Men actor making an appearance in the film.