. . . Have ADR's at 8:35 for Dec 1 . . . what is the chance they will move the opening that day up to 8 . . .
1) It is all based upon anticipated attendance.
2) We should know 10-days in advance, because the manpower schedules are posted 2-weeks early.
3) And, opening a whole hour early is a major manpower schedule issue.
4) But, an opening 15-20 minutes ahead of schedule is really possible, and done at the last moment (without advance announcement).
. . . just because the Rope Drop is done, it does not mean the rides will open earlier, so, manpower is not a problem
. . . all the ride manpower does not need to be present, just "crowd control" folks
. . . guests would just wait in line a tad longer, until all the ride CM's and operators show up
5) In your case, this could be when you have just sat down to eat, and, no way to predict if there would such an early Rope Drop.
.
NOTE:
. . . Parks frequently open 15-20 minutes early.
. . . This is the decision of The Duty Manager.
. . . If he/she thinks the park is ready, he/she can order the turnstiles to open for general admittance.
. . . We have all seen this done.
. . . For December 1st, I would not say this is out of the realm of possibility.
. . . In my experience, the thing that might hold up and earlier opening is if there are still vehicles (including trucks) roaming the parks with supplies.
. . . Nothing destroys the Magic like a delivery truck in the walkway.