I am close to end "the shadow rune" with one of my groups. And they like their characters very much. But as things are - there will be no way to play these characters on. Even more I think it is more fun to explore new characters a new groups.
But have you ever thought about a way to transport the flavor of one campaign to another one?
Maybe you could find the gear of you last hero by drawing a treasure chest (Act I items in act I and act II later in act II). Or you could call for help of your old hero in a structured way - here I have no idea how to implement this, without disturbing the balance or gaming mechanics. And what might be a way to transport the feeling for the overlord?
Any ideas, suggestions or opinions?