A few updates...
1) As others have said, RFID systems went down all over property for 30 minutes after park open, affecting turnstiles as well.
2) From statistics being given out, only 30% of the reservations coming for this whole month have signed up for anything related to FP+. That says a LOT.
3) Apparently the folks with NGE have heard the outcries. I'm trying to confirm this but I keep hearing that with this round of testing, they are going with 4 FP+ slots, but only for MK and not the other 3.