I'm 100% on board with relocating Soarin's entrance to Showcase Plaza. Of course, I'm on the "it's a small world" to Showcase Plaza team as well.
As for Future World, I think the Test Track preshow screams classic EPCOT Center to me, but I think the ride doesn't utilize the designs as much as it should. Put our designs on screens next to our vehicle on some of the tests or animated up on monitors. Simply showing the rankings is unsatisfying and underwhelming. They went 70% of the way there.
Mission: SPACE's update is nice enough, but this is probably the worst D-ticket attraction on property. Short of outright replacing the attraction/building, I'm not seeing much here.
The Seas with Nemo and Friends is an underwhelming, disjointed attraction. The queue is great and the ride is stale. For me, it's C-ticket level. Admittedly, I was indifferent towards the Sea Cabs as well. With this, I'd love to see them use the wet to dry system from TDS's 20K Leagues Under the Sea as part of a Marianas Trench attraction.
Imagination is awful.
Living with the Land could use updates, but I'm not sure what. The greenhouse entry and exit tunnels should definitely be updated/cleaned/secured.
Spaceship Earth's problems are well documented, but not as critical as others feel. A new script is necessary and the descent needs to be fixed. I would be content with everything else remaining as is.