yes, they interview you during your rotation. you do not return for an interview in december.
5 spots at emory are usually given out as follows: 1 spot to emory student, 2 spots to rotators, 2 spots to non-rotators.
btw, this is a great program. one of the top 3 in the southeast, in my opinion (along with vanderbilt (i'm biased) and the campbell clinic).