Imagine being the actor cast to play Benjen and then being told "Oh by the way, when Sean Bean's character dies he will be playing yours and you will be....out" Actors, being sensitive creatures with massive egos, tend NOT to react too well to this type of news!! So I cant see it happening, and if it did Id just feel sorry for the origional guy. Sean has a role, we must be content with that, and not wish for more! Be nice beanygirls!!!