I never said it was a current plan. I agree that it is an interesting piece of history; however, the past does influence the future. The proposed alignment of this plan wouldn't work today, any way, because it doesn't consider things that have been built since, such as DAK. That doesn't mean that an updated plan can't borrow from this plan at places that haven't changed much since this one was engineered. As far as old plans go, companies shelve plans all the time and go through with them sometimes decades later, especially Disney. Wilderness Lodge and the Grand Floridian are good examples. Splash Mountain is another. The proof that Disney hasn't ruled out a future system based (loosely on this one or not) is the pink and brown lines you will find in the RCID's most recent Future Land Use Plan.
The fact that this project made it to the EIS and permits were pulled is a lot more than I can say about any of the proposed monorail expansion plans! It also means that this wasn't just a proposal. It was an actual engineering project that was in the works, but was cancelled for one reason or another.
By the way, the projects you mentioned in Dubai were pulled because the Dubai monarchy (which also is the funding source for those projects) was starting to run out of money, so they had to cancel or shelve projects in order to avoid bankruptcy. Disney since 1985 has never ever been close of getting bankrupt. Individual subsidiaries, such as Euro Disney have gotten close, but, collectively, not even close. WDW as a subsidiary alone has been making so much money for the WDC it's not even funny. In fact, last year WDW covered an unexpected shortfall in earnings by the film division. So, earnings at WDW are so good that they even cover other divisions' slack!
Disney really should give a percentage on earnings back to WDW for infrastructure and attractions capital. I think its unfair for one division to pull the weight of the company when other divisions blunder. Their performance should be rewarded for in the form of greater funds back on the earnings gained.