This update has jus been released for Watch Dogs 2 for all platforms. The T-Bone content bundle is coming for PS4, Xbox One and PC.
This patch will add a lot of multiplayer features and new content. The developers are not going to release the new Watch Dogs 2 update at the same time for all the platforms. PS4 is the first to get it on December 22nd. Afterwords, Xbox One and PC will get it on January 24th, next year. This is part of Watch Dogs 2 DLC that will include Mayhem co-op challenge, new enemy archetype the Grenadier. In addition, the T-Bone chaos event starts on December 19th. For 4 weeks you can win ingame cash and unique event rewards. So far the price is unknown but there are rumors that it may be for free.