In this thread over on the WoW forums, poster Davinchi of the Chogall server asks where you'll log out for the last time.
Now for me, I don't really like the question as-is. it's sort of a bit too final, you know? I expect I have quite a few years of Warcraft playing left in me. That said, the concept is sort of fun to think about in that I have to admit I sort of have ideas where my characters might retire. I've never seen my characters as completely dependent on me. Maybe I'm just too much a Roleplayer, but I can't really make a character without seeing their personality and disposition, and what they'll end up liking and disliking, and how they react to the various quests and grinds I send them on. So I have a pretty good idea, I think, of where they might end up should I ever stop playing them to move on to other characters.