My wife a little bummed out that she wouldn't be seeing the Hogwarts show as it was seasonal so she's more than thrilled that she will be able to see something later this year now hopefully.
With the new cinematic show coming to USF as well, I think we could be seeing a turning point in UOR for opening later now. With more rooms coming online with Aventura later this year and WnW next year, that's a lot of guests who will want to stay in the parks longer because their rooms are so close. Possibly my biggest gripe with staying on site was how early the parks were closing, granted this was September but when a park closes at 6, it's too early to call it a night but too late to really do something else. A park closing at 10, allows for you to go to Volcano Bay and then visit IOA or USF at night but make it worthwhile.