So in the physics of the heart, distance is relative; it’s time that’s absolute. - Lois McMaster Bujold

It's an interesting problem, though, for writers of popular series. Should one throw one's protagonist over the Reichenbach Falls, or let him fade gently into the sunset of the Sussex Downs, keeping bees? (Or both?) No matter which the writer chooses, someone will be unhappy about it. If one's audience is large enough, it will collectively demand every possible closure, most mutually exclusive.

There is a subtle difference between being a prisoner and being a slave. I don’t mistake either for being free. Neither do you.

Just like swatting flies with a laser cannon. The aim’s a bit tricky, but it sure takes care of the flies.