I'll answer my own post. Son just called. He got active duty. So parents of MSIVs, brace yourselves. It's about to get real.
I'm going to guess the Army realizes they may be short of officers in the future since one of the cadets at my son's school requested NG and got Active Duty. I'm absolutely sure that has happened before but I haven't seen it since my kids were in the ROTC pool (2010-2015)