Well may have side missions of guideing a trader like in fable one but make it longer and more fun of course, exmaple being he riding horse and carrige and you sit in the back with you bow/gun and asl use of will? Of course people who like to swing the sword could walk next to it?
An idea for story maybe Jack of Blades comes back because as always they keep the good story line from past games maybe someone discovers the mask as it may not of been fully destoryed bringing Jack back?