I called yesterday. The woman I spoke with said that there has not been any waitlist movement yet and that she does not know how much waitlist movement there will be yet. She said it depends on how many more people withdraw.
As for the method of notification, it seems like a waste of time sending letters of acceptance off the waitlist in the mail. According to past Temple school-specific threads (not last year's), people accepted off the waitlist were notified by e-mail (which makes more sense given the time constraints of attempting to fill the class before orientation - mailing letters would be such a waste of precious time and some people may end up not receiving letters at all or in a given time frame).
If anyone is still holding a Temple acceptance, still has multiple acceptances, and does not think they will attend Temple, can you please withdraw?
Of course I'm just kidding, no pressure, but seriously do it.