I don’t know a lot about the Disney tendencies, but it seems as though when they release their hours initially, there’s a good chance it’s going to change as the date gets nearer. As the busier season approaches, the hours often get extended. Take MK for example. The July closing hours were 9:00, then pushed to 10:00 (and fireworks added), and then a few weeks later they pushed their August hours to a 10:00 closing as well.
With HS, I find it weird that their August hours close at 9:00 starting August 1st, but the July hours close at 8:00. I figured it would be the opposite as August seems to be moving away from the summer crowd season and into back to school time.