Its not time to panic. Places you rotated at will always be your first interviews because most of the time, the first invites programs send out are those to people that rotated while they are looking at other apps. Oct 15 is only an important day for the 30-40 programs that have agreed to it, thats only a minority of the EM programs. Chances are, of the programs on that list, any given candidate only applied to a few of those anyways. Every other program not on the Oct 15th embargo list does things in their own way. Some may send out invites early. Some may send out invites on a rolling basis. Some may wait later than Oct 15th. Most will send invites out in waves. Its all over the place. So you can't look at Oct 15th as a make or break day.
I've said this time and again, if you can get to 6 total interviews by Nov 1, you should be fine. If you aren't at 6 by then, you can still match, but you could be at risk since getting to 10 will be a bit harder. Most people that get to 6 by Nov 1 easily get to 10 interviews. A good number of interviews will still come out in November. December/January have tons of cancellations as well, so if you are flexible and can travel on short notice, you can dig up interviews there. So if you are at 6 by Nov 1, you should be able to get to 10-12 with Nov invites, LOIs, and cancellation fill ins.
