We were in the first group off the ship this past Saturday July 2. We had breakfast at 6:30am, they let us off at about 7:45am and we were through immigration by 8:20.
There was a notice posted in every navigator to go to guest services with a copy of your airline itenerary if your flight was before Noon. I believe they can make arrangements to have you leave the ship early but they want to see your travel arrangements in writing. Good luck!