if there are programs you are really interesetd in and you havent heard a thing by maybe the 1st week or so in November, email the PD with a statement like
"I am very interested in your program and I have not been offered or denied an interview. I was wondering if my application was still being considered".
This got me a few extra interviews and also a few "no"s so I could stop wondering.
Unfortuantely some programs dont have the class to give you a definitive no and you may never hear a thing. General interviews offered in jan and feb probably mean you were waitlisted even if they didnt say this and then others drop out and nw interview options open up. I got a very good interview in mid january.