Disney has been sending out emails to guests with upcoming reservations to add extra guests to their Galaxy’s Edge visit before June 24th when reservations are no longer needed.
This is a change from when they were previously only allowing 1 additional guest to be added for those who missed or had an error adding additional guests on May 2nd when the reservations were done
You are allowed up to 5 total guests per reservation. Capacity is limited and they’re only doing this pending availability, so we would suggest calling soon if you’d to take advantage of this, the number to call for this is 888-834-9125.
Allowing these extra people into the land is likely Disney operations testing the upper limits of what the max-capacity of the land is during the hours when the reservation windows overlap. Star Wars: Galaxy’s Edge fully opens to the public without reservations needed on Monday, June 24th at 8 AM.