So I started this thread last week to try and sort out what the current procedure is. In general from what I’ve read, if you have a reservation prior to park opening (ex: we have 8:25 BOG with park opening currently scheduled for 9) you can get in at 7:45 which would mean empty Main Street.
There seems to be a situation on what policy is vs what is actually happening. The thread is here if you want to check it out. There is at least one person going in the next dew weeks who is planning to report back as well S a quite a few others who have done it recently.