According to Orlando Informer, the dates haven't been released yet. Last year was Dec 3-18. I would expect it to be similar this year. I'm going Dec 3-10 so I'm waiting for more holiday info too.
This goes for all the Christmas stuff at both parks, and Harry Potter. It's a change from prior years as it typically just went from the first weekend in December to a few days past new years. All the Harry Potter stuff for Christmas is new for this year.
According to Orlando Informer, the dates haven't been released yet. Last year was Dec 3-18. I would expect it to be similar this year. I'm going Dec 3-10 so I'm waiting for more holiday info too.