I cannot start to imagine how insane this will be, regardless of the phased opening.
With EMH, who knows how many will turn up for it, at least 2 hours before, some will be there even earlier. They can’t have everyone waiting in the park, the line will have to continue outside the tapstiles, unless they have a virtual queue system with return times (which is pretty close to a reservation system, which has been ruled out). Those arriving for RD will need to join that line. So when the park opens at 9am, how long is the line then?
How is that line counted towards park capacity? It seems to me that guests arriving at DHS will need to make a choice, wait in the line for Galaxy Edge, or do the rest of the park, because those with ADRs and FPs for the rest of the park will need a separate line to get them in on time.
Once in Galaxy Edge, some die hard fans will happily stay for hours. Disney may be estimating people will ride and hang around for an hour. I assume they can’t jump back on the ride again and again. But until they leave the land, they can’t let more people in. There could still be a huge backlog to get in, even with the ride queue moving along nicely.
On top of this, you have the guests just wanting to do the rest of the park. Once in, if they decide they want to want to ride MF or RotR, they may find they have to exit and join the end of the line sneaking around the parking lot.
i’ll be watching with interest into see what happens. I expect this to be mayhem for weeks, months. Just glad I won’t be back until December 2020.