Outside of more alienesque like GotG:MB (not that you wanted that but just saying) what would you have liked to see for Marvel Land?
What would a SuddenStorm Avengers campus look like?
Glad you asked. To start, it's worth noting that I'm not a fan of the "one IP land" approach, and I expect it to start losing popularity in the 2020's when these companies are tasked with updating the lands they built in the 2010's.
Marvel is a character driven universe. It's environments are far less memorable than the heroes- which creates problems when designing an area for an amusement park. It works great for singular attractions within more generalized lands, but to develop architecture, shops, attractions, and shows into a land without the ability to draw from other IP's? That's a tough challenge when relying solely on Marvel.
Another issue with Marvel is how frequently it changes and rewrites itself, both on film and on paper. Disney isn't going to constantly rebuild the land to keep up with whatever phase the MCU is in- and I expect it will look very different a decade from now.
Another challenge? The land has to appeal to Marvel fans
and Disney park fans. It can't be so Disney that it doesn't seem like genuine Marvel, or vice versa. This is something the Imagineers are failing to grasp from what we've seen.
I'd chuck anything we've heard or seen about the new land. Nothing that's been announced or rumored excites me.
Instead of an Avenger's campus- I'd set the land in some kind of expo or World's Fair type thing, which would allow them to integrate architecture and attractions from all of the Marvel heroes, as well as provide good enough reason for it to take place in California. A Wakanda exhibit would be stunning. This could also allow from all types of food and world culture to be integrated into the land.
This would also allow them to have an everchanging series of exhibits to help keep the land fresh as Marvel grows and changes.
Instead of a Spider Man C ticket? I'd do a 2010's Adventure Thru Inner Space tied to Ant Man. Using whatever tech and ride system would best achieve the effect of traveling through the quantum realm.
An Avenger's coaster is also problematic. To start, the roster of who's an "Avenger" is ever expanding in the MCU. Another issue? Roller coasters aren't story driven or character driven experiences. They're environmental and experiential. The Avengers relies on the characters, which would be a detriment.
The Avengers are associated with comedy, action, cool powers, and cool villains- not high speed races. An Avengers attraction needs to be a dark ride, not a coaster. A high speed, thrilling dark ride (think Indy on steroids) that breaks new ground.
Obviously, I'm not a designer. I couldn't tell you exactly what needs to be done differently, but from what I've seen, the Imagineers aren't hitting the mark.