To add, they've also been extending the hours of the preview period. TM previews we're from 10am-4pm while this next phase ends at 5pm, 6pm, and 7pm towards the end so they're adding hours to the operating day at the name time.
I'm curious to know if 10am might be the actual opening time like Volcano Bay to make it easier to keep the park open until 8 or 9.