I think you should read their description of the work again:
"We want to let you know that
The Incredible Hulk Coaster will be getting some great, new enhancements to its storyline, ride vehicles and overall experience."
"I’ve been lucky enough to get a sneak peek at plans for The Incredible Hulk Coaster, and I can tell you the overall experience is going to feel more immersive and high-tech. But don’t worry—the attraction will still have the same “Incredible” personality that makes it one of America’s most popular coasters."
Considering the queue is where the immersive and story stuff is, I think you can be sure that there's big changes inside.