Update 1.1.0 for the multiplayer expansion of Final Fantasy XV, titled Comrades, will be releasing December 12 on PlayStation 4 and Xbox One. This update will include the usual bug fixes and improvements, but also a few content updates. This patch seems to be a couple weeks out, but you can check out what’s in the update today!
Gematsu provides the details on the Comrades update:
Fixes

Cases where the player?s level does not rise
Cases where enemies do not appear in multiplayer quests
Other things that prevent progress

Improvements

Shorter loading time between Lestallum and Camp
Shorter AI comrades generation time

Additional Content

Timed Quests ? Quick Matching-exclusive quests. Defeat a lot of enemies within the time limit. Witch?s Shop ? Receive the buff effect obtained through a meal in exchange for the Timed Quest reward.

Haven’t given Comrades a try yet" Here’s more about the multiplayer expansion:
In Comrades, players can create and customize their own avatar and partake in epic quests in a world engulfed by darkness. As members of the Kingsglaive, players will equip royal sigils that grant special powers from the rulers of old, strategize with one another and create a balanced team in battles against formidable foes and beasts. In addition to multiplayer quests, players can experience the story unfold in a thorough single-player campaign. By using the base of operations in Lestallum, the player can undertake a variety of exciting q...