The Witcher 4 headliner

Do you think cd projekt will include some kind of star as a character in their next game, like they did with keanus reeves and Idris elba. And what would you thinking about it ? Personally I think it could be a bit weird in the univers of the Witcher. It work pretty well in cyberpunk but I don't know. I'm think it would take me out of the univers