The Creative Assembly have just announced that they'll be releasing a huge standalone expansion for Total War: Shogun 2 called Fall of the Samurai. It will be set in the period leading up to the Boshin War, in which European and American forces introduce a new wave of military technology that threatens to wipe out the Samurai.
Fall of the Samurai will add six new factions. Some, like the Nagaoka, sill support the might of the Shogun. Others, like the Satsuma clan, want to embrace Imperial power. Externally, British, French and American forces are vying for influence in the Land of the Rising Sun. Over the course of the campaign, you'll get to decide Japan's fate.
New tech trees will reflect the evolving technology of a country adapting to the influx of devastating new weaponry from the west. That technology includes new naval units like "steamers, torpedo boats and mighty Ironclad battleships." For the first time in Total War, these will be able to launch artillery attack on land units from the safety of the sea. Coastal defences will also be able to launch ranged attacks on incoming fleets, and the fight for influence will rage across a new campaign map that will incorporate the Northern Ezo territories and railways. Railways can be used to move troops incredibly fast, and can be sabotaged by the enemy.
On the battlefield, 39 new units will be available, including Gatling guns, US Marines and British Royal Marines. There will be three new agent types, Foreign Veteran, the Ishin Shishi and the Shinshengumi. These campaign map agents will have all new progression trees, and the Geisha and Ninja skills will be updated.
The six new factions are divided into pro-Shogunate and pro-Imperial groups. The Aizu, Nagaoka, and Jozai clans fight for traditional Japan, while the Choshu, Satsuma and Tosa factions fight for the Empire.
A number of improvements will be made to siege battles. New tower defences can be upgraded and specialised to become archery, matchlock or gatling gun towers. A new "port siege" battle will let armadas brave coastal defences to take control of coastal towns by occupying their harbours.
Shogun 2's multiplayer features will also be expanded. You'll be able to create a separate Fall of the Samurai avatar with access to 40 new retainers, 30 new armour pieces and a new tech tree. There will be a new 19th century conquest map and you'll be able to create multiple avatars to try out different tech tree builds.
Fall of the Samurai is shaping up to be a huge update. It's standalone, too, so you won't need Shogun 2 to play it. It's due out in March.