Maybe it’s not as big of a problem as we think it is?
Capacity will be much lower than normal, and not everyone is going to be there right away. They can try to eliminate choke points as much as possible, kind of like they’ve done with MK over the years by moving security points all over, letting people in earlier and just roam Main Street, maybe they modify the individual land/attraction rope drop somehow.
Actually if they move the popular attractions to VQ people can disperse themselves all over snagging a spot instead of rushing the line.