I think there are lots of ways to keep edutainment if they want to. There are no shortage of kids museums across the U.S., we visit plenty when travelling since we have 5.5 year old twins and a 7.5 year old. That's what I remember from the Imagination Pavilion before it went in the crapper. They could easily do it again, like Wonderworks only better. It just takes money. The same with Innoventions. I don't know why they don't do a whole section on coding with different coding games for different ages. Coding is one thing that is not going away and I have to believe Disney could come up with better options than the coding tutorial games my kids love on the computer. Maybe something where you have a real life object that is moved and the object gets more complex as the experience of the game increases. Even at the highest levels where there is some kind of short ride with the movements coded by the more advanced users. It's not that hard to come up with this stuff, a lot of it exists, it just needs to be Disneyfied and taken to the next level.
Why they don't take the concept of Living Seas and move it to Energy is also beyond me. Living Seas has a great edutainment component inside. Energy could be the same thing. You could have bubbling algae tanks, windmills in a wind tunnel that show how much energy is created at different wind levels, solar panels that need adjusting to a moving sun to demonstrate how to get maximum efficiency. You could work with batteries and showing kids how distance and wire sizes affect voltage efficiency and have a game set up so that after you learn about the renewable energy sources, you have to set up a system based on environmental parameters to power a city for a simulated day with clouds and wind speeds and batteries needed for night time and loss of points for having to fire up your fossil fuel generator. It would be the culmination of the pavilion. A lot of this could be hands on and incorporated into games, with results stored on the magic bands. So you can compete against your family for who wins the coding area, who wins the energy pavilion, etc. Before or after you would have a dark ride.
And for the love of god, bring back the health pavilion. This is simple to have a few ropes courses for different ages and skill levels where your biometrics are tracked beginning and end. The biometrics are then explained and more advanced and simpler health improvement exercises and monitoring are included. Mental health has a component, and you bring in Inside Out to rebuild Cranium Commander. This is a stupid no brainer, especially with the food aspect where you could have a gourmet vegan type restaurant, a juice bar, a smoothie section, and entire nutritional component. Again, it all exists, but Disney could do it so much better.
If they just improved those four areas, even if they included IPs, for example Big Hero Six in the coding area, Figment in the kids science museum, Wall-E in the energy area and Inside Out in the health pavilion EPCOT could once again be fantastic edutainment. Families would have a blast competing in each pavilion and you would get all the edutainment EPCOT opened with.