A personnelist officer friend of mine told me that we could potentially find out if we were picked up or not for this year's board based on what is on the Loss roster. Apparently, before AFPC processes personnel for assignments, they first insert you into into MilPDS - this comes first, before any advance commander notifications, or PSDM release. So, theoretically, you could find out if you were picked up based on where you assignment is loaded -- ask your CSS to check the Loss Roster through BLSDM. Because this is done manually, this is why there is a long wait time between the board and announcement. And because there are normally upwards of a hundred or so total board applicants, this can take a month or so for a single Airman to hand-jam... so it is possible for some of us to be populated on the Loss roster without ever knowing.
I have BLSDM rights, so you can bet I will be checking every day!