Maybe they will do somthing like Mass Effect did, add a small new area kind of off to the side and put a few more quests in there with some new weapons and clothes with abit of a story to the place. But than again. If fable 2 ends with you having to die I doubt they will add anything like that. Maybe small quests or armor.
But I guess it was like that with Mass Effect too...you know? where you go to the end and you couldn't go anywhere else and it just ended, but they came out with a whole new quest that was about an hour long with mini stuff inside and new weapons. SO YEAH...im done.