Via wdwnt.com:

Despite a HUGE announcement at the D23 Expo, it seems Walt Disney World has decided to make several changes in regards to the roll-out of the many aspects that would have been part of the Season of the Force event at Disney’s Hollywood Studios. With many fragments of the event rolling out in small bursts from now until January 5th, it seems Disney will simply advertise all of the pieces individually rather than market it as some seasonal event. In short, Season of the Force will not exist.

That being said, all of the advertised pieces of Season of the Force are still happening. In fact, the fireworks show that was originally announced as only a weekend offering will now be offered nightly:

“Symphony in the Stars: A Galactic Spectacular’’ – Starting Jan. 5, 2016, guests will be treated to a spectacular finish to their visit to the park involving a dazzling Star Wars-themed fireworks show set to memorable Star Wars music from throughout the saga.
There will also be an added-charge dessert party offered for the show:

Guests will soon be able to purchase admission to a dessert party during the fireworks show featuring themed desserts, specialty drinks and a souvenir Chewbacca stein.

But specialty snacks will also be available throughout the day:

Guests can experience Star Wars through their palates. Various novelty items and specialty foods inspired by a galaxy far, far away, such as Blue Milk Panna Cotta, Padawan Limeade, BB-8 Lemon and Butter Cream cupcake and a Han Solo Souvenir Kid’s Meal served in a Han Solo-themed bucket, will be available at various locations inside Disney’s Hollywood Studios.

Another new offering beginning on January 5th will be the First Order Stormtrooper patrols:

As guests enjoy the sights and attractions of Disney’s Hollywood Studios, they may come face to face with First Order Stormtroopers who will patrol various areas of the park, interacting with guests during their mission to find members of the Resistance.
These pieces come in addition to the Path of the Jedi clip show, Star Wars Launch Bay, Star Tours: The Adventures Continue additions, and the new Jedi Training: Trials of the Temple Show that will all be in place by December.