I don't know the deadlines for R2. But technically Cornell will interview until one week before the decision release date. And there were people who interviewed late and still got accepted (R1). Good luck!
yes....i am flying to HK for an interview this weekend. Got interview invite around 2 weeks ago. But I had to resent my gmat score.... so i guess my interview already came pretty late. My interviewers is interviewing three applicants this Sunday.