I got a call from the investigator about a week after my pro-rec. I had to meet with her and she had face to face conversations with a few of my friends, as well as calling a few others.
This happened to me as well, but it happened before the board even met! That didn't make me happy, because I didn't exactly want my boss to be interviewed. The investigator interviewed me, my friends, my family, my neighbors, my boss, and God knows who else.
But I've heard my situation was rare and peculiar, so who knows. Most others, like Tom mentioned, never got a single call.
I, too, was Pro-rec'd in June, and never got my Final Select Letter until I called the NRD and asked for a copy. I got it 15AUG, it was dated 15JUL. Go figure.
You may get a call, you may get a letter regarding your Final Select, but I don't think it is dependent on your JPAS going through.
Keep us posted!