Fans are getting stir-crazy, as they want something more dramatic than small refurbishments or a new ride every so often.
Is that really it, though? I think people just genuinely want a great new E-ticket once in a while. And when we get it, we want it to live up to Disney's (previously world class) quality, and not have broken AA's and a largely unthemed interior like Everest. The Twilight Zone Tower Of Terror, or arguably Splash Mountain, is the best (and best themed) WDW E-ticket built in my lifetime, and I'm 31. That was almost 20 years ago. I'm honestly not expecting a new gate anytime soon, but I believe most people think a world-class E-ticket once every 5-10 years doesn't seem that out of the question, especially when Universal is dropping them like candy. And I'm not some Universal fanboy, I just think from an objective standpoint Universal is dropping bombs, WDW has been stagnating, and what WDW E-tickets have been built in recent years are not the world-beating ones they once were.