Thanks cgattis! Another piece of info - my wife can't do rides that go round continuously because of inner ear issues.
So far, unfortunately it doesn't sound like there's a lot there that we can do. It sounds like ET, Hogwarts Express, Shrek, Despicable Me, High in the Sky Seuss Trolley Ride, some queues, walking through Harry Potter and the wands.
If we add in the shows do you think this would be enough to fill a day?
I'm reading online that Jimmy Neutron’s Nicktoon Blast may have stationary seats? Does anyone know if that's true?
How about Terminator 2:3D? Does that have motion?
Jimmy Neutron's Nicktoon Blast has been replaced by the Minions ride, and there IS stationary seating for that one.
I think there is PLENTY to do to fill a day (or more!) even if you can't experience many of the attractions... Here are some specific ideas:
*Enjoy the theming in all of the areas of both parks... especially the Seven Duffs topiaries in Springfield, the DeLorean and train from Back to the Future, Central Park... the list goes on and on!

*Have a Duff beer at Moe's (or a Flaming Moe if you don't drink alcohol!) in Springfield
*Talk to the Knight Bus conductor and the shrunken head in London!!!
*The shows themselves could probably fill a day... Horror Make-Up, 2 different puppet shows (BOTH are definitely worth seeing!) in Diagon Alley, the Triwizard Spirit Rally and the Frog Choir in Hogsmeade, Blues Brothers, plus there are some pretty new additions - the food truck one, and the percussionist construction workers, and I think one more... Plus there are some really amazing acrobatic guys in colorful costumes who stack chairs a million feet in the air and climb on top of them... I get so nervous every time I watch them!!! Oh, and Poseidon's Fury is delightfully cheesy and definitely worth doing once!
*Enjoy the AMAZING restaurants in the parks. Mythos is a must-do for me!
*Watch the nighttime Cinematic Spectacular show in the lagoon (or whatever seasonal show is happening at the time)
*Character meet & greets - the superheroes are especially fun!! Oh, and Betty Boop, and the Simpsons gang, and the amazing Transformers meet & greet....
I'm sure that's not even close to an exhaustive list, but it's what comes immediately to mind!