International Applicants? There seem to be a few questions about international applicants and whether or not the process is different. While I am not one, and I certainly cannot be certain, I will share that I recall speaking with one applicant that was international at InterviewFest and during my interview the interviewer mentioned how some of the applicants from overseas did not make their flights due to weather/etc. Of course, these could be U.S. citizens living abroad, or they could be international - didn't really probe that.
Additional Invitations? With that said, from everything I have gathered, the ADCOM will most likely review all the applicants already interviewed during InterviewFest, which was only a week ago, and then issue further invites as they see fit. So, if you didn't receive an initial invitation, don't lose hope because additional invitations have probably not been sent yet as the first batch is still being evaluated.
Moreover, an official "ding" letter will probably not come until after they have made their final selections near the end of the month (apparently). Can't confirm, but that is what I have read.
I'll finally just echo the "submitted" verbiage on the application website. It does not appear to change.
Best of luck!