I've been meaning to write an article about this but I haven't had the time, so I figured now is as good a time as any to just post an abbreviated version of it here on the forums. Hopefully this is considered on topic for this thread...
While digging through some old Department of Environmental Protection filings I came across a great document from 1997 showing a conceptual master plan for Universals new land back when they initially acquired it and owned a much larger portion.
Much like their original Universal City master plan which was posted above, the new resort area was going to be heavy on the golf and resort areas. They also earmarked space for two new theme parks, one about 300 acres in size and the other about 150 acres. There was also a sizeable retail/entertainment district
(kinda hard to see on the map below, but it's under the first golf course to the left of the Golf Villas) and plenty of hotels, totalling 13,000 rooms.
I've included the master plan map below, as well as the project narrative and land use plan. It'll be interesting to see how different their new plans for the land will be some 20+ years later.