Pick up the Worgen quests and not be a Worgen?
I have an interesting theory. Escape out of the Worgen starting zone as a Warlock, keep your hearthstone (you're timed to get out, possible though) and then when you hit 42, you simply hearth back in and summon your friends with the help of two lowbie alts.
If you can pick up the quests, I can't even say what the result would be.
Dual-racials? Worgen Gnomes? It's more likely than you'd think!
Anyway, explanation aside, I just want to know if they aren't race-specific. I know Blizzard cuts corners.