The publisher plans to launch five pieces of Assassin's Creed 3 DLC. Three will form "an all-new single-player campaign" which will be made "available as a continual episodic story that will let players experience an alternate history of the American Revolution".
It also plans to offer further single-player missions, plus new maps and characters for the game's multiplayer component.
Assassin's Creed 3 creative director Alex Hutchinson said earlier this month that the Wii U version of the game is "exactly the same" as the PS3 and Xbox 360 editions.
Our Assassin's Creed 3 review describes the fourth Assassin's Creed game in four years as "a gargantuan, lavish historical epic, let down by shoddy mission design".