Creative Assembly just sent out a press release confirming that Total War: Warhammer will get official mod support, including Steam Workshop. In fact, the development team will apparently assist the modders in preparing their mods to be ready for release day (May 24th).
Total War fans have been accustomed to mod support and Steam Workshop compatibility, but because of the Warhammer IP restrictions the feature had been in doubt for this game.
Visit Steam Workshop For Total War: WARHAMMER – and upload, browse, follow, discuss and install available mods straight from Steam, and access and manage them from the new Total War Mod Manager.
Get the Assembly Kit – CA’s modding tool box, previously released for Steam Workshop, will release with the Database Editor and BOB for modifying and exporting database tables and campaign start positions, with the aim to add further functionality, including battle map editing, later in the year.
Download Mods – Attendees to CA’s Mod Summits over the last three years will be supplied early access to the game, to help populate the Steam Workshop from day one. Also, well-known modders Magnar and Dresden will receive specific help from the dev team to produce certain mods. Magnar is designing a Legendary Lord Start Position Mod; customising start positions so that Legendary Lords will start in different locations from Race Leaders, while Dresden is engineering a Regional Occupation Mod; altering the settlement rules to enable each race to settle every region.
The DotA 2 team at Valve also announced last week that they'll be accepting submissions for a new Warhammer-themed treasure to celebrate the release of Total War: Warhammer. You can find more info here.