I'm looking forward to the next version, when diseases and 'creature metamorphosis' are implemented in a manner that will hopefully allow for infectious lycanthropy. I'll try rigging up a system to get my werewolves to wound prisoners without killing them, so that once they turn I can tame them and add them to the ranks of my army's warbeasts. What could possibly go wrong? 
This just gave me an idea, but not werewolves, and it probably won't be added to the game. But it's still an idea.
Zombie arena.
Chuck a goblin into an arena with a zombie beast in it, doesn't matter which. The zombie beast will kill and turn the goblin into a zombie goblin. Throw another goblin in.
When you've got a good horde of zombie goblins, start throwing in more than one at a time.
Perhaps try giving them weapons to give them a sporting chance.
...Hehehehe, a sporting chance...nah, just leave 'em unarmed and naked.