Unfortunately, if you were not invited to the Open House in February it is unlikely that you were admitted. They told us we were the last 10 people being considered. I was there and heard a few days after (March 3 or 4) that I was accepted. I think the only people on the waiting list include those who were at the Open House but not accepted immediately. However, it could be that they are "informally" keeping other people on the waiting list without telling them. I am not sure.