Also an idea for a new DLC:
Invasion setting with a new culture invading the lands (mix between Vikings/pirates maybe?) Maybe having slave beasts/monsters that they use to win battles – a beast tamer that sits in the back like a necromancer and keeps the beast in control. Killing him would unleash the beast and it would fight both sides possibly. New weapons like muskets or early gunpowder type weapons.
Maybe even have the new faction offer contracts if you decide to fight for them. Slave caravans, attack villages, plunder. Maybe a full on rogue alternative.