I don't see any immediate benefit. The concept of EPCOT was greatly bastardized from what Walt envisioned. When Walt died, the Disney Company decided they really were not interested in getting into the city management business...so, they abandoned that concept, and instead tried to pay homage to the World's Fair, which played a huge role in park development (Animetronics, for example).
EPCOT opened as a permanent Worlds Fair, with the front half representing the future, and the back half celebrating various world cultures.
I think what would really help EPCOT, is going back to this original concept, and focusing on the future. It's very short sighted of WDI (or Disney management, I suspect that's where most of it is coming from) to think that edu-tainment and touching experiences don't have a marketable value.
I didn't remember much about Magic Kingdom when my parents took me in 1983, outside of the Contemporary and the Monorail, but I did remember EPCOT. I loved Figment, I remembered the huge "ball"...even my daughter knows the "silver golf ball", and adores that park, even in it's current state.
It touched me.
Later, I got to go back a lot, because my Grandparents lived near Orlando. And EPCOT was by far where I wanted to be. This was the late 80s, early 90s. In fact, the year I turned 16, I applied for a job at Disney. I didn't get one, since I was only in the area for a few months, but I couldn't imagine a better job to have then a sweeper at EPCOT. I spoke German and passable Spanish, and at that age, I went so much, I found myself stopping to answer guest questions (most common, where's the bathroom), even though I was just a teenager. Funny, as an adult, I still find myself doing that.
Anyhow, my point is that "thrill" rides are fleeting. What the original EPCOT had was lasting. And WDI and Disney needs to remember that. The kid might say today that they loved Mission Space or some thrill attraction, but will they remember the details of it in 20 years? I doubt that.
When it comes to Futureworld, Disney has lost sight of the ball, I think. Hopefully someone inspired will come around and breath magic back into that part of the park.