Just booked my Sept vac ADR's today. I thought Hoop de Doo Revue was going to be down for rehab from Aug - Sept, but found out from the CM at Disney Dining today that they have pushed back the rehab to October. We were able to book ADR for Sept 8th.
Hooray!!!!!
Hooray!!!!!

I have seen a few posts with the 8th booked and I can't figure out why
I kept thinking I was missing something somewhere 
They said they would keep me informed if/when they learn anything.