We were there on Christmas Eve last year, and I didn't notice anything happening that hadn't been going on earlier in the week. Still, there's so much special happening during the Christmas season that you will find it magical: Christmas show in front of the Castle, performances on the stage in Tomorrowland (last year), Christmas parade, snow on Main Street, Snowflakes projected on Castle, Christmas Wishes (again -- last year), Holiday performance at Country Bears Jamboree, etc.