This is from another website from someone who I think is a cast member but I can't say for sure. But this person tends to know things before hand. But its just a rumor. But a very interesting one!
Westsider
Soon the Disney Parks Blog and a media release will reveal the online process to score a staggered "reservation window" for entrance into Star Wars: Galaxy's Edge. But that's just going to be a scam to try and prevent too many AP's from showing up casually before summer blockouts begin on June 24. What's really being planned is that a chunk of the land capacity will be saved each day for a Standby line that will be stacked on the Big Thunder Trail. From May 31 you'll be able to enter the SW:GE Standby line on the Big Thunder Trail and wait to be let into the land in between pulses of reservation holders. The land entrance will be handled like any other Fastpass ride, and the Big Thunder Trail entry caves will be the "merge point" where Standby and Fastpass are allowed in alternately. Leads and managers will use radios to communicate between land entrances and pulse in Guests from the Standby line as reservation holders arrive and depart.
Fastpass won't be offered on Falcon anytime soon, so the SW:GE land entrance will be handled like a Fastpass/Standby entrance instead.
No word on how DAS holders will be given priority land entrance if a Standby line is present, and DAS may be given a Return Time based on the current land Standby wait. But DAS is part of the SW:GE land entrance process when there is a land entry wait and reservation windows are booked out for the day. Guest Relations CM's will be staffing the SW:GE land entrances to be available for DAS assistance and concerns.
The Parks Blog is gonna play it off in their upcoming announcement that a reservation is the ONLY way to get into the land from May 31 to June 23, but that's not the real truth. They'll lowball the number of reservations available daily on purpose and allow in big pulses of non-reservations Guests, so long as you don't mind waiting some on the Big Thunder Trail. But expect the Standby lines to be long on May 31 and that opening weekend.
The way to get into the park overall will be handled just like the 60th kickoff was, with Pumbaa Parking Lot opening for pre-staging on May 29, and then a line formed at the Harbor Blvd. entry portal and into the East Esplanade on May 30. Toy Story Lot will come online for pre-staging parking once Pumbaa fills. Harbor Blvd. will be the point of entry for almost all early arrivals for May 31 and opening weekend, since the Mickey & Friends structure expansion still won't be open and ready yet this June.
Also more trash talk about ROTR and all it's problems. It's still bad. Real bad. An important part of a new attraction opening is something called the 72 Hour Test, or MDOT (Multi Day Operating Test). An MDOT is when a ride system is operated continually for 72 hours straight, round the clock for three days non-stop. Ops CM's operate the ride system in shifts, Imagineers are there also to monitor progress 24 hours a day, and Facilities CM's are on constant standby in case of downtimes or mechanical issues. The ride doesn't have to be perfect for the MDOT, and downtimes are expected, but it needs to operate at least 80% of the time for 72 hours straight to pass the test. Every Disney ride has to pass this critical test before it can continue on to final prep stages before opening for Guests. Falcon already passed it's 72 Hour Test and got the greenlight from WDI and DLR Facilities. A May 31 opening is a cake walk for Falcon, especially due to basically having 4 different turntables and thus 4 different ride systems that are all behaving as expected and planned.
But ROTR is nowhere near being able to try an MDOT and operate for 72 hours straight. Having ROTR open by D23 Expo is a wild goal right now, but there's a scenario that ROTR might be delayed until late fall or the '19 Holiday season. Maybe there will be a breakthrough and ROTR will get up and running for paying Guests later this summer, but no one is betting on it.
The May 31 opening date for SW:GE was agreed to by WDI and TDA management because Falcon is almost ready to go for Guests already, with Entertainment, Foods and Stores on track to be ready by mid May, and there's no sense in waiting for ROTR to be ready months from now. It's gonna be awhile for ROTR, so TDA is going to get the party started on May 31.
And as of now you won't really need a reservation to get in, no matter what the Disney Parks Blog and management says to the media.