If Bombardier is the only company that can supply new monorails, there could be a timing issue. The Bombardier plant just outside Kingston, Ontario is their monorail production facility in North America, and though it has significant test capabilities, it is not a large manufacturing centre. Due to significant issues at their Thunder Bay plant with the production of streetcars for Toronto's TTC causing major delays, Bombardier has begun production of LRVs for Toronto's Metrolinx, Waterloo's GRT/ion, and Edmonton's ETS at the Kingston Plant, a significant expansion. On top of this, they are also beginning to build additional TTC streetcars in Kingston. All of these customers are significant for Bombardier, and keeping the major public transit agencies happy is key to Bombardier's success, much more so than building a dozen monorails. To put it in perspective, the TTC order is for over 200 vehicles, and the Metrolinx order over 150.
With the Kingston plant tied up with a number of orders, production of new monorails may not be possible until the early 2020s. While it is possible that they could start up a production line in Plattsburgh, NY for monorails, it seems doubtful that this would be economically feasible for such a small order, and we know Disney would probably be happy to wait a few years if it saved them some cash.