It is unlikey, but not impossible. I called last Tuesday (First day of our 7 month window). We are going the first week of October. I called at exactly 9:00 when MS opened and had the option of BCV or BLT (wanted 2 BR dedicated). I took a 2 BR lock-off at BLT. After talking it over with DH, we wanted to change to BCV. I called back about 1 hour later, but the BCV was gone!
So... we waitlisted... but we still got BLT at 7 month window!!!!!!!!!