I just checked again for our December trip, and Disney has finally added all of the new dates for the FDP for October, November, December, & January. It's about time! Good luck getting the restaurant and time you want!
They're back up now! For my week in December it seems as though the only dining option they added was Hollywood and Vine We had an awful meal there so i'm gonna keep trying for Mama Melrose.
I'm still waiting for availability for dec 18, but it still hasnt popped up for lunch or dinner I have Le Cellier for lunch and Flying Fish for dinner. But it would be so much more convenient to have a reservation for Fantasmic, that way we dont have to keep exiting the park to eat.