That release schedule is Bungie's "current plan," but community manager David "DeeJ" Dague noted that plans can change, so the studio isn't committing to a specific release date for the patch just yet.
Bungie previously said the December update will deliver a fresh round of weapon balance tweaks, new uses for Etheric Light and Wormspore, and a sizable expansion to the game's array of exotic gear. The studio confirmed today that "after receiving plenty of feedback about our armored friends," it will be "making some adjustments" to the Titan's Sunbreaker subclass in update 2.1. The Sunbreaker's super attack, Hammer of Sol, is widely perceived to be too powerful, especially in PvP.
That's not all — Bungie added that it will be revising the Titan's Defender and Striker subclasses as well. Senior design lead Sage Merrill will break down all the changes in a blog post tomorrow. Bungie is planning to post full patch notes for update 2.1 early next week, alongside the update.
This week, Bungie debuted the first challenge for King's Fall, the game's newest raid. It requires players to defeat the Warpriest in a specific way, and rewards them with the Worm Gods' Servant emblem. The studio said today that next week, the challenge will shift to the Golgoroth boss fight.