Windham does not have an open boundary policy like Jay Peak, MRG and Sunday River do. They will probably be just as strict as before and you will get busted with your ticket pulled. There is no tree skiing or clearing in there, so don't ski it. It isn't labeled as a glade, just as a section of the mountain that they will likely expand more to in the future. I believe that Windham has one glade over between Windfall and Wipeout. They also either have or want to add snowmaking to Wipeout.
I've lived in New York my entire life.