James McAvoy has clearly thought out several potential outcomes here, which may signal he’s serious about his desire to join the Star Trek universe.
That may be an expensive guest role, though, so perhaps it would just be better if he came into the universe as an entirely new character.
I’m sure any of the Paramount+ shows (Picard included) would be lucky to have him, and I’m rooting for him to one day play Picard in flashbacks set back in The Next Generation days.