I would find a way to segregate the seats even more - I would segregate them by age, group, &/or intent and do this by hooking up with some smart guys in the acoustics department.
In order for this to work, we want to situate more students and fans who would be seated in (or buy) what I'll call "Atmospheric Seats".
These seats are for students and fans alike who want to be loud, rowdy, and participate in leading cheers with the Block O along with and overall intensity of the environment.
Place them strategically around the stadium to create a whirlwind of noise throughout - meanwhile have different blocks of seats which will be assigned to older fans and families who will sit and watch the game and not necessarily want to be around the louder, rowdy fans, but place them in areas that don't carry sound as well.
Definitely double deck anywhere students are situated and also I like the idea creating a standing area for people to pile in and stand watching the game. It would be easy to make a step structure so people could see over each other.
You guys had some great ideas overall - I'd like to see grass fields back and new endzone art, and honestly Beer would be great if for nothing else than allowing them to lower ticket prices.