Tail of the Dragon is the next NICOfest, but it's a long drive from the northeast.
If you're interested in tracking your car, the Audi Club has 2 HPDE events coming up at Summit Point Raceway, which is 90 minutes west of Baltimore. Any make car welcome.
9/17 Sunday: beginners school on the Jefferson Circuit
9/18 Monday: one day school on Summit's main track, all levels welcome,
11/12-13 2 day school at VIR, their full course, (Alton VA) one of the nicest tracks in the country, featured regularly on SpeedTV. any make car welcome
If you're interested, I'll post a link. they have many other events at northeastern tracks like NJMP, Pocono, Lime Rock, Watkins Glen, NHMS, Mont Tremblanc, etc.