NothingtoProve

Got the call this morning from BUSTH and was accepted to the PhD program (History & Hermeneutics)! And my friend in theology & ethics got in, as well! An offer is to come later via email and details to come via post. 
I cried happy tears and I'm still in disbelief! 

Thank you! It's such a good reminder. 

Don't be crestfallen just yet. The process is quite mysterious.  As Deep Fried Angst said, you might reach out towards the end of February. Breathe. You've got this. Even if you were not admitted, it's not because you don't deserve it. The process is corrupt. Hang in there. 

@NothingtoProve, you'll want to make sure those interviews or acceptances are from the same sub-field that you have applied to since there's a chance different sub-fields send out info a different times. 
I will say for me, Emory didn't reject me till March 22nd, so it kinda felt like there was an unofficial wait list I was on just in-case all of the interviewed applicants turned acceptances rejected their offer of admission. 
That being said, it is most likely that you did not get in if these interviews and acceptances were from the same sub-field to which you applied. There may be a chance that you have been placed on a wait list, but you will be behind (most likely) all of the applicants they interviewed (if they interview) but did not accept after the interview. 
Since most notification of interviews and many acceptances are sent out by at the latest the end of February, you may want to wait a couple weeks and email the departments about the status of your application. 
There's absolutely no shame in a full round of rejections. I know many people, on this site and in real life, who took a couple rounds before they were accepted to programs. Since you don't have interviews to prep for, it may be a good idea to sit down with a trusted professor, look over your application for weak spots (we all have them), find a feasible plan to improve them by fall, and get ready to do this all over again. (oh, and begin the job hunt so you have money to eat come summer...). 
I do not want to deny the magnitude of the suckage these rejections can make you feel. But you're not out of the ballgame. Regroup. Plan. And dominate next year's application cycle. 

How likely is it that I'd still get into a Ph.D. program if I was not invited to an interview or sent an acceptance email and all the schools I've applied to have already sent out these notices? For example, I applied to BUSTH, Vanderbilt, Emory, and Syracuse, and it looks like based on search results and posts in here that they've all sent out invitations to interviews or acceptance emails. Pretty slim that I got in, right?