Technically, it already did as an original sscarezone in 2008- "The Skoolhouse". It was very much inspired by/loosely based upon "Trick R Treat". It even had the schoolbus (which was used for cast change).So Trick R Treat is actually coming to USF as the IP itself; but as a scarezone?
Never really believed that myself, so I am actually shocked.
Then 2012 had the "Traditionals" horde which were a bunch of trick or treaters.
Ironically, The Skoolhouse SZ was located in Central Park just like "Trick R Treat" is located on the map for this year. So I'd just say expect more of the same since the movie Trick R Treat is not exactly SZ material.