I just finished reading Married to the Mouse and it does sound like it fits the course of events given.
Speaking of the book, I found it interesting and recommend it for those interested in the general aspects of urban design and effects of a big tourist project. My only big issues were with the author's insistence that there was never any seriousness behind EPCOT and I think he misconstrues part of his evidence for this claim, the lack of permanent residents. One was never going to be able to retire to EPCOT. My impression has always been that residents would be assigned to EPCOT by their employeer for some term and then return "home" inspired what they saw.
I could see this happening, especially if new dark rides are a part of the plan. As the Christmas offerings at both Busch Gardens and Hersheypark have shown, people will brave the cold. The big problem for both parks however is that the roller coasters cannot be safely operated in cold weather (and would not be very fun if they could). Adding more dark rides would diversify the park's portfolio, making it more appealing in the winter months. Proper resort siting and amenities could very much make it a draw on its own.
Is the brewery open or is it closed? And how long has it been closed? If it has been closed since before the sale I do not think it would be unreasonable if it was included in the sale of the park. The Tampa Brewery was torn down years ago for theme park expansion, and I am sure Busch Entertainment were always aware that the same could happen in Williamsburg.