Here's how I, personally, would tackle an EPCOT makeover...
SPACESHIP EARTH: Please replace that stupid touch-screen "look at the future" thing they have at the end. Some new narration wouldn't hurt, either. Maybe James Earl Jones?
Good idea. Agree on the pick of narrator.
TEST TRACK: Wouldn't change a thing (yes, I like the new version).
I would keep the high speed outside loop but the inside would become a new transportation focused AA heavy dark ride. The name "World of Motion" would return for nostalgic purposes.
MISSION SPACE: I don't really have an opinion on this ride, but since most people on this forum don't like it...
Dismantle the show building but keep the facade. The new pavilion name is "Cosmos" and houses a slow dark ride journey through the universe with jaw dropping special effects hosted by Neil DeGrasse Tyson.
WONDERS OF LIFE: I've heard the idea of a weather-themed pavillion tossed around. Or, of we don't get rid of Mission Space, use the land to build a new version of Horizons.
Inside Out takes over Cranium Command and there would also be a new health themed show hosted by Baymax like how the pavilion originally had a show featuring Goofy. Body Wars returns with all the upgrades Star Tours has gotten and a brand new plot.
THE LAND: Soarin' getting another theater is perhaps one of the greatest ideas ever (love the ride, but the lines are a chore to be in). Maybe a new version of Kitchen Kabaret could open here, too. Although I would like to have it be hosted by the Tone Loc Nutrition Label from Food Rocks. He was awesome.
Not much to say here like Spaceship Earth. The Soarin' upgrade is happening as far as we know and it would be cool to see a show like Kitchen Kabaret open again. I barely rember it at all.
IMAGINATION: Dreamfinder. Enough said. I wouldn't mind an "Inside Out" addition... IF and ONLY IF it has the cast teaming up with Figment instead of replacing him.
As I said above Inside Out would go to Wonders of Life. Imagination stays focused on Figment and Dreamfinder with a brand new amazing update.
LIVING SEAS: I can either take or leave the Nemo stuff.
They could keep Nemo but at least change it to you joining Mr. Ray's class instead of just a retread of the movie.
UNIVERSE OF ENERGY: Okay, this is just a weird idea I had.. Ditch Ellen and have it be sort of a new version of the original incarnation, but hosted by Jim Parsons. Because I'm a really big fan of "The Big Bang Theory".
That could either turn out really well or make the attraction dated even more.
CANADA: Maybe some kind of raft ride?
A water ride would work really well. Either a raft or log flume would work.
UNITED KINGDOM: Since we're sticking Frozen in Norway, we might as well stick a Mary Poppins ride here. Though it'd probably work better in Fantasyland...
King Arthur would be better.
FRANCE: Not sure what I'd do here... I've heard Ratatouille rumors...
Something really cool could be done with Jules Verne here.
MOROCCO: Aladdin comes to mind, but I doubt people would approve of that given the uproar over Frozen in Norway...
Can't think of something here but definitely not Aladdin.
GERMANY: I like the idea of ressurecting the Rhine River Cruise.
Either that or my idea of a ride about the Brothers Grimm.
ITALY: How about some gondolas? Or at least a show?
Yes.
AFRICAN OUTPOST: Obviously this space could be used for a new country. Not sure which one...
Brazil.
It could go in a different spot too. Doesn't matter where.
AMERICAN ADVENTURE: Doesn't really need any changes at the moment.
Absolutely 100% agree.
CHINA: Can't think of anything to do here, either.
Same. Maybe a ride through China's history?
NORWAY: Frozen's going in, and there's nothing we can do about it. And it'll probably result in the Norway pavilion being so crowded that you'd need a jet pack to get to the next pavilion.
Maelstrom refresh
If Iago and Zazu eventually left Tiki Room, Frozen can leave Norway and move to Magic Kingdom 
Hypothetically, of course. I know it won't happen
MEXICO: The Three Caballeros ride, I think, needs a bit of a refurbishment. I'd ditch the storyline about Panchito and Jose trying to find Donald and just have all three of them showing us the beauty of Mexico and stuff. I had the idea to put an Emperor's New Groove ride here, too, but I'm not sure how well it would fit...
That could work better than how it is now.
Now, these are just ideas (and probably not very good ones, at that), but that's just how I'd do it.
Finally I would add these two new E Tickets to World Showcase.
