Harvard itself seems to be sending conflicting messages. They SAY that if no interviewer is available that it will not count against you, but, according to some posters who have sifted through evidence from the lawsuit, it suggests no interview, no admittance. International students have reported that they don’t know of anyone who got in without an interview, but that’s anecdotal.
I believe that the deadline for interviewers to turn in reports has passed, although one or two applicants report having a previously scheduled interview set for post deadline. I wouldn’t be surprised if it was a soft deadline given that most of the folks doing them are alumni volunteers.
At this point you are probably not going to get an interview. Waiting until the last minute to apply probably didn’t help your chances of getting an interview either because those spots are known to fill up. All you can do is hope for the best and take admissions at their word that your app will still be considered. Good luck.