This is the list of all mods that have a public release for WFAS
Kengeki Gaiden (M) Kengeki Gaiden
This is a Total conversion mod Based in japan during the 16th century.
Demon Mod (M)http://forums.taleworlds.com/index.php/topic,209860.0.html
This semi-realistic mod has you killing demons with a host of weapons.
The thread is lacking on details on this mod, but it has new factions and multi faction battles.
Halo AS (M)http://forums.taleworlds.com/index.php/topic,177927.0.html-In
this total conv mod you have to defend yourself from waves of enemies from the halo universe
Era of Supremacy (M)http://forums.taleworlds.com/index.php/topic,198209.0.html-This
is a napoleonic era multiplayer mod.
Enhancement Mod. Rule your own kingdom! (S)http://forums.taleworlds.com/index.php/topic,218099.0.html-This
mod adds faction options to the game, and changes many aspects of the game.
WFaS Battalion (M)http://forums.taleworlds.com/index.php/topic,192142.0.html
This mod removes some factions , adds 3 new factions to use in MP and it has cannons.
War Getting Worse (S)http://forums.taleworlds.com/index.php/topic,194830.0.html
This mod adds new Units to the game, a battle continuer, and re-balances the game.
GESIA Mod Pack (S)http://forums.taleworlds.com/index.php/topic,197823.0.html
This is a modpack containing neo native, War getting worse, and Modified Companions.
Gaunt's gameplay mod (S)http://forums.taleworlds.com/index.php/topic,199807.0.html-This
mod adds many new features to the game.
Tweaks and game fixes.
Pre-Battle Orders & Deployment (S)http://forums.taleworlds.com/index.php/topic,209923.0.html
A port of Caba`drin's mod for warband.
Neo native (S)http://forums.taleworlds.com/index.php/topic,183202.0.html
This mod Changes the map and adds new textures, more bridges and rivers and relocates all parties.
Sound and Smoke (B)http://forums.taleworlds.com/index.php/topic,169492.0.html
This mini-mod changes the smoke texture and adds new sounds to the game.
Battlesizer 1.6 (S)http://forums.taleworlds.com/index.php/topic,193517.0.html--This
tweak adds a battlesizer to the game.
Companion modifier (S)http://forums.taleworlds.com/index.php?topic=195421.new#new--This
mod, modifies the companions.
Administrator mod (M)http://forums.taleworlds.com/index.php/topic,209127.0.html
--This code adds admin commands to the game.
Ok thoes are the ones i have seen and heared of so far, If I have missed any, let me know.