There were also half as many guests coming each day!
So one of the things I had heard from someone associated with Imagineering is one of the reasons for not upgrading the monorail trains is a plan to eventually replace them with new transportation. Instead of trains, the same beams would run a bunch of pods, with switches along the beams so they could stop at or bypass each station depending on where the occupants were going. I happened to see a vehicle on display from Oceaneering today that reminded me of that concept:
These could also be used by Universal to move guests between locations if they could be made to run on lanes down Kirkman Road.