Yukos wrote:So many questions. JS are the initials of the Harvard dean of admissions, Jessica Soban. JS1 = invitation to interview/the interview itself, JS2 = the call telling you you're accepted.
About 1200 people will be interviewed and 850 will be accepted, implying a 70% chance of turning a JS1 into a JS2.
Generally if you don't get a JS2 within about three weeks of your JS1 you're en route to being held/waitlisted/dinged, but this might change once we get to April and the adcom is making final decisions (that is, people who had their JS1 months before might get a JS2 out of the blue).
Don't give up hope though!! My JS2 was 2 months after my JS1 and came completely out of the blue.