I just got off the phone with reservations making a change to our June DLH reservation, and I asked some questions about access to Galaxy's Edge. This is all the information that the CM was able to give me.
1. The initial three-week period is being designed specifically as a test to see how they will get people into and out of SWGE after June 22. So calling this a soft opening sounds about right.
2. There will be three time blocks per day, enforced with colored wristbands. (Note that this meshes pretty well with the rumors that people will be allowed to visit in four hour chunks with breaks to empty out the area in between.)
3. At this point Disney may limit access during the preview period to hotel guests if there are so many guests that they take all available slots. He said "the capacity of Star Wars Galaxy's Edge is about 1/89th the capacity of
Disneyland." This indicates that they intend to keep the area from being shoulder to shoulder, at least in those first three weeks.
4. They haven't yet decided how the extra reservations (if any) will be distributed. From the context of the conversation, it sounded very much like they intend to give reservations to hotel guests first, then AP holders, then others -- but none of that is firm. He just kept mentioning AP holders even though I am not one and I didn't bring it up, so it really sounds like they're contemplating special access.
5. As of right now, anyone who has a reservation from staying in a hotel will be disqualified from seeking a second reservation in whatever extra reservation system they set up. That may change. (I hope it does, I'd love to be able to double dip and visit SWGE for two time blocks in one trip.)
6. The target date for releasing new details about the reservation system is May 1, but we should all start checking a few days before that because they may release it a little early. But it won't be too soon, because they still haven't even decided what they are going to announce.
May this meager information fuel a thousand speculation posts!!