The folks that purchased the property did have a plan to restore. This is a direct link to that plan. (This is one of the "tabs" in RG's post that was sorta buried in the Kimball Castle website she posted)
http://www.kimballcastle.com/concept.html
I remain surprised that someone or a group of someones
... hasn't done anything with this property. Lot's of big money around the lake, I hope it gets saved and recycled into something.