Huh! Yeah, I just read a plot synopsis for PoE ... animancers & Watchers, a bit confusing and thus appropriate for one like me who often wanders in the unknowing mists of Leira anyway. I guess Planescape has an angle somewhat like that as well. I would not use a reincarnation as a plot device for the PC's story, but rather as an NPC subplot. That way you could write it the way you want.