Yeah, speaking of the monorail expansion,
(sorry if this is straying too far off topic...) one of the "future development" maps from that same FDEP filing with the trolley system shows a proposed monorail line stemming from the Epcot loop, running through the Epcot resorts and to Hollywood Studios. It's a bit faint because they chose light blue for the line, and it's a scanned photo from 1991, but if you look closely at the full resolution image, you can make out most of it (it's listed as "Proposed Monorail" in the map legend.):
Click for full res...
And then there's this reference to another proposed monorail expansion from the late 90's that at least made it to the feasibility study phase:
Walt Disney World Monorail System Expansion Project, Orlando, FL: Project architect for this Walt Disney Imagineering project involving developing six themed monorail stations as part of the concept/feasibility
phase for the proposed multibillion-dollar expansion of the existing monorail system to Disney’s MGM
Studios, Animal Kingdom, Downtown Disney, and Typhoon Lagoon with significant enlargement of existing
facilities at Disney’s Magic Kingdom and Epcot. Project also included schematic layout of new remote
monorail maintenance facility.
That quote came from this portfolio:
ftp://ftp.dot.state.fl.us/LTS/D5/Procurement/13557_Kissimmee_Parking_Garage/LOR/Pond/Pond & Company_Resumes_433874-1-32-01.pdf