A new event and content are now available for Chivalry 2 owners. It's limited in time, so pick up those swords, or whatever else you find on the field of battle, and have at it.
This Midsommar Event is a limited time affair, though neither Torn Banner Studios nor Tripwire mentioned when exactly it will end. I suppose if you are interested in playing during this event, you should just go play it as soon as possible because...