Here's the official video of this morning's "rope drop" and the first reservation group allowed in to Star Wars Land. That's Disneyland President Josh Damaro at the very head of the line, waving folks in and leading the charge. That's very impressive that he'd want to be that involved and up close with all those paying customers!
Disneyland seems to have gotten this reservation concept right and hit it out of the park when it comes to manageable park experiences.
There are only 2,400 Disney owned hotel rooms at the Disneyland Resort, with just over 30,000 non-Disney hotel rooms in the Anaheim Resort District that get no access to Star Wars Land. There are over 30,000 Disney owned hotel rooms at Walt Disney World, that would theoretically get access to Star Wars Land if WDW uses the same type of reservation system. But maybe WDW restricts the reservations only to Deluxe, or Deluxe and Moderate?
There will obviously need to be differences, if WDW management chooses to borrow the Disneyland reservation system.