Well, if you guys like data, I've got some older data that basically confirms what we know.
for 2007 there were 119 oos interviews and 58 oos acceptances. 39 OOS acceptances did not matriculate, leaving 19 oos in the class
There were 254 IS interviews, with 174 IS acceptances. 17 IS acceptances did not matriculate, leaving 157 IS in the class.
This was a movement of 56. We're going to assume the waitlist is at 100, so this means all of upper third and over 2/3rds of middle third.
For 2008 data looks extremely similar, although I don't have acceptance data (only interview/ matriculant)
However, this confirms what many of us know; most waitlist movement is due to oos students.
Looking at last year's SDN waitlist acceptances we can see a few patterns. These are conjecture, and not fact, but I'll allow it. (thanks nosssan for collecting the data)
we should expect to see significant waitlist movement after these dates:
April 16th, which is the deadline for scholarship apps.
May 15th, which is the last day to get back your deposit.
Upper third: Expect to hear before middle of may. Start looking for a place to live.
Middle third: Expect to hear by the end of june, maybe even up to july 25th. Start looking for a place to live, but you should also start thinking about a backup plan.
Lower third: Wait until july. Be looking into that back-up plan. (May I suggest a job with impact alabama?
http://www.impactalabama.org/ They take 1 year commitments, starts in july. Pay is a pittance, so it's basically volunteering with living expenses kind of covered. People there are nice, I'm sure if you went into it saying "if they call me on July 24th saying I'm into med school I'm going" they would probably work with that)
Last year was different from previous years, and we don't know if it's a fluke or not yet, so I'm hesitant on my predictions for the thirds. If it's not a fluke though we should get into the lower third. (adcoms seem to be creatures of habit.)
Feel free to call me out on anything that's incorrect.