Welp now that the game is out, the lack of duel is a really obvious negative. I've got a bunch of friends who are playing a Mount&Blade title for the first time and nowhere to actually show them how to play. Instead they can now join Siege or TDM and get slaughtered endlessly or flail ineffectually until they get bored.
Just give us a place where we can chill, learn, and explore the mechanics.