So, I know it may be far fetched in some ways, but in some ways it would make sense...
It would be in Orange County's best interests to work with Universal on this project in any way they can to bring billions of dollars in investment and new revenue from new parks. So what if they work with Universal to relocate the sewage plant? While it wouldn't be cheap or easy, it's not beyond the realm of possibility. Looking at the maps the logical thing that the county could do would be to build a new plant in the vicinity of the existing one meaning that the existing pipes would require a minimum amount of re-routing, and it just so happens that Universal owns a large plot (almost exactly the same size as the existing sewage plant) on the opposite side of Sand Lake Road backing up to an industrial park and the Turnpike. It would mean they could upgrade the plant to handle more (for all the new growth), improve treatment (reducing odors) and free up valuable space and take over what would be nearly useless land for Universal.
If they could affect some kind of land swap and Universal shoulders some of the costs, it could free up more land for development and take care of a major problem that the new property currently has. As it is, something will have to be done about the smells coming from that plant in order to make the place desirable for development. Just driving past it on Sand Lake Road is HORRIBLE. I can't imagine having hotel rooms or theme parks adjacent to that plant.