The official program is still to be released, but this is what I've already found:
- All lands and most rides will be open
- Young & old is allowed to dress up
- Battle between the Pumpkin Men and the Pink Witches in a Light & Sound spectacle on Sleeping Beauty castle
- Free make-up and hair workshops for young & old
- Live bands on the Pink Witches stage near Cowboy Cookout
- Guests in the best outfits are invited to join the parade in Main Street
- DJ party in Main Street USA
- Lots of other Halloween-suprises
There was a small fireworks display last year, but I can't find any information if this would return. Maybe it's integrated in the sound & light show...
There were also lots of Villains characters and pumpkin men out, this should still be the case. And there was also a lot of bizarre streetmosphere.
Hope this helps!