they sent it to my ucsd account last friday. i am in sixth and i guess since sixth has the lowest student population out of the colleges there happened to be space.
i wouldn't worry about being screwed with no on-campus housing at all. they give the highest priority to incoming freshmen, which is us, and plus you're waitlist number is low. the only downside might be that you wont get a spot at the muir dorms, and even then it might be cool to stay in a dorm of one of the other colleges instead of your own.