GTA Online will add an "epic" new heist activity, titled 'The Doomsday Heist' on Tuesday, December 12.
Coming for PS4, Xbox One and PC versions of the game, the update also appears to add new vehicles and equipment to GTA V's multiplayer mode. All previous updates to GTA Online have been free, so we'd assume this will be too.
The Doomsday Heist itself looks to be an even less serious approach to high crime than we're used to from GTA Online - the trailer includes an existential threat on Los Santos, an AI called Clifford, futuristic jetpacks and tanks and, most excitingly, flying DeLorean-style and submersible Lotus Esprit-style cars.
The official press release describes it as: