MIT Sloan announced the following on their admissions blog:

“Our Admissions Committee is busy reviewing Round 1 applications for the Class of 2019! We have already begun sending interview invitations to Round 1 candidates, and will continue to send them until November 1st. By November 1st, every R1 applicant will receive an updated decision status.
Round 1 interviews begin next week in Asia and will continue through early December. We will give applicants as much notice as possible when scheduling interviews, and candidates will have the choice of interviewing on campus, or in a city closer to their current location. We plan to visit approximately 15 cities, both within the US and abroad. The location of the interview will not be a decision factor, but for those who can make it to Cambridge, we host a special program for interviewees, including lunch with current students and a class visit. Please note that all applicants invited to interview have the option to come to campus for their interview.
Final decisions for candidates who had an interview will be released on December 19, 2016. Applications for our Round 2 deadline are due January 17, 2017.”