Yes, you'll have a good chance of seeing Christmas decorations. I know that on one of my trips, when I went over to the lodge, the decorations were still up (I THINK that was 1/3/02). Last year I went in December for the first time, after 3 early January trips. I made special note of what I saw that I hadn't seen in early January. CP, Holiday Storytellers, Christmas tree lighting in Epcot (although tree was still up 1/2 one year, but down by 1/4) were all only in December. Also, characters were no longer in "Holiday garb". Only resort decoration I remember in December that I hadn't seen in January was the big Gingerbread house over at GF.