I am in receipt of the email from AU as follows;
------------------------------------------------------------------
We received your TOEFL and submitted your application to the admissions committee. You will receive an admission decision via FEDEX next week.

Thank you,
-------------------------------------------------------------------

At first I thought this was an admission notice while skimming through the email, but then, it seems more like that the decision will be sent next week by fedex.

hmmm.... American University sends all of its notice via FedEx even for waitlist or rejection letters?