By the way, in Planescape:Tides of Numenera the death of the main char will send him into a "mind maze" where he may discover new things and he will eventually return to the normal world. I think I saw in a video that normal companions (= they are normal people and not a XXX (what was the main char again, castoff?) they will be gone forever (like PoE). However P:ToN is a very special setting and this would not work in a more "normal" world.
Prof. Dr. Dr. Mad S. Tist
World leading expert of artificial stupidity. Because there are too many people who work on artificial intelligence already