Hi Stephan,
http://airshowny.com/They are also on FB, where they seem to be pretty responsive to people posting questions. You may want to start there.
https://www.facebook.com/airshowny?fref=tsWithout a Jet Team the line up at present is a bit on the light side. I only see about two hours of flying. I'm hoping they fill it out a bit with more warbirds, military fly-by's and civilian acro to make it a good show.
They do have the Horsemen though! 3 P51's, that's enough to get me to head up there!
SWF has had airshows in the past and they parked the cars on the grounds. The last one was 2003 I believe. The last one I attended was 1988.