I got in off the waitlist last Thursday the 28th. However, I'm not sure yet if this means that American is going to the waitlist... I applied late (Mid-Feb, but took the Feb LSAT) and was waitlisted the 8th. No one else on LSN has been accepted off the WL, and its been over a week now... so I would have expected if they were, then people would be getting off of it.
I drafted a quick letter just to tell AU that I was interested and that I would accept a spot in either program. I only applied to AU, GW, and Georgetown, was rejected from the latter two -- I figured that, since I wanted to go to AU -- why waste a year now if I'm just gonna end up there the next year.
Anyhow, the letter went out Friday the week before and Thursday morning, I got the call from the dean. Maybe the letter made them review my file again... maybe they waitlisted me because they thought I would end up elsewhere... who knows... all I know is, I'm goin to AU full time next year... and I am quite happy about it
If I had any advice... I'd say, send them a letter... if you haven't yet.