I also got the email from the Assistant Dean yesterday afternoon. I submitted two application updates including the continued interest one in March, I had 2 new recommendation letters sent in, and when I was placed on the alternate list I called the admissions office to ask if there was anyone I could speak with or meet with to discuss my interest in GW, and they informed me that Kevin Nies, the Director of Admissions does meet with interested students that are placed on the alternate list, so I met with him. I think all of these contributed to me getting the email from the Assistant Dean yesterday, but I think the meeting showing my interest had the greatest impact.