Walt Disney World is planning a small expansion of the monorail system for work tractors, just off the EPCOT line. Work tractors can't go to the EPCOT line until after the Magic Kingdom closes, since they are stored at the monorail barn behind the Magic Kingdom.
Full Story is here....
http://thedailydisney.com/blog/2010/07/disney-world-plans-small-monorail-expansion/


Now if they would just connect it to the other parks :)