There is a fun New Years Party held at CityWalk. Lots of food and drinks and a firework show. They also have a live band. Mant on these boards that have gone enjoyed themselves.
Grinchmas and The Macys Parade start around the 11th or 12th of Dec.Its lots of fun and the decorations are beautiful. You should be OK date wise since I recall it runs till the beginning of Jan, maybe like the 4th.
They do a live show during the day at Suess Landing with the whovilles and the grinch and Max is there too. The hotels also offer holiday festivities but that schedule wont be out for a while.