I have yet to try the pumpkin fudge, but I have heard from many, MANY people who love it. I'm not sure how long after Thanksgiving it is in the parks, but if it is there when you are, I recommend giving it a try. I plan on it next trip.
Also, they do really cool projections on the outside of Its a Small World at night. We were waiting for the parade, and they seemed to show them every 20 minutes or so. It was music and projections that lasted a couple of minutes. They might not do it this year if IASW is still down, but hopefully they do!
Also, they have a short castle lighting ceremony that is awesome to watch. They did it twice a night when we were there. They play one song, and the castle slowly lights up. It is beautiful. This was new last year, and it was lovely. If they do it again this year, make a point to see it at least once.