I live in the Finger Lakes. I usually travel to the High Peaks areas for September camping, but I have people coming this weekend and have a boat to finish. Anyway, a couple nights doesn't sound very apealing, I usually head out for about a week or so at a time. Fall is my favorite time.
This year I will be avoiding the eastern sections. The western areas are mostly longer canoe trips and short hikes, though you can get some good hiking time along the Finger Lakes Trail and the NCT. Both pass through some fairly populated areas though. I am really more addicted to back country stuff.
I think they will have at least some of the trails open in the High Peaks areas by the end of the month. The roads from western CT, NH and VT will be in various stages of repair. NJ was hit hard. Eastern PA took a hit also. Check any route maps and local travel route planers for the best routes through or around any bridge/road works.
It is easy to set up a list or group on yahoo or the like. Let me know.