What would be nice would be a realism update:
Poleaxes and greatswords become useless, everyone buys a shield, bows gets damage buff and MASSIVE accuracy nerf, horses get MASSIVE volume buff and become slower and less manouvarable as they take dmg, xbows get slight dmg nerf and massive accuracy nerf, block removed from pikes, weapons that block with wooden pole take dmg and break....many more things.
Then i would be happy with mod. I can dream on I guess.