I definitely disagree. The City of Orlando has a history of giving away public goods/money to Universal. As an example, the City paid for the pedestrian bridge that connects two the hotels to the theme parks. This was highly controversial. (See the Related Articles section on the following page for opinions.)
Orlando Sentinel:
http://articles.orlandosentinel.com...al-orlando-universal-boulevard-property-taxes
Full Disclosure: I don't know the status of this project. It may have been scrapped. Regardless, my point is that the City of Orlando isn't against giving away stuff to Universal.
Also, Orange County officials seemed eager to help facilitate the privately built Maglev train between the airport and the International Drive area. That plan involved providing access to public land a private company. Again, I don't know the status of that project. But, there seems to be support by local government for these types of things.
(By the way, I think you're mixing up your trains. The Maglev was never going anywhere near Disney World. The train that was to include Disney World was the high-speed rail project between the Orlando International Airport and Tampa. That project was sunk by our idiot governor.)
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While the connectivity of the old and new portions of Universal Orlando are interesting, I think the biggest unknown regarding infrastructure is vehicular access.
Sand Lake Road between I-4 and Kirkman Road is already a big mess. If Universal intends to build a theme park on this new land, that short stretch of road will become eternally gridlocked. Figuring out how to get thousands of cars to and from the new site is a far bigger problem to overcome.