I’d like to think it would show Halloween and Christmas-themed movies running in tandem with Kung-Fu Panda. The Japan park operates that way, running two films at once in their 4D theater, just splitting up showtimes (edit: also Legoland does the same thing with their 4D films). It would help being such a small park, with limited expansion space, and there are already Dreamworks shorts and TV specials that are holiday-themed. It wouldn’t take much, other than some testing and effects work.
Then again, if it proves to be popular like Minion Mayhem, then they wouldn’t even need to add that functionality for a few years.