There is supposed to be a separation between WS and future world. Putting in a peoplemover to get people to WS would eliminate that separation. There were plenty of rides planned for WS that never happened. As well as other countries that didn't happen either. Look up concept art online it's all there.Seems like they could add more entertainment to the culture and technology parts. Really the entirety of Tomorrowland could be transplanted into Epcot. Then have the people mover take people to their chosen land in WS. Throw in a 3 d roller coaster that simulates skiing through the French alps, a family style ride (similar to little mermaid) along the Great Wall in China. Samurai training in Japan. I've only been to Epcot once, but was unimpressed and bored. Seems like a big food court.
If Epcot were to make those changes and secede, it could work as a stand alone. As is, Epcot would shut down in the first year, or be more like a Disney springs type area instead of a "theme park"