Berber Cavalry-Basically a weaker version of the Commache Rider. Saved by the bonus on desert tiles. 5/10
Commache Rider-Good UU, couples nicley with the UA. 8/10
Great Galleass-Can easily dominate the seas and protect naval trade routes. 8/10
Impi-Aside from the ranged attack, not much else for it, but is very good for taking out cities with two attacks, as it can weaken the defences and then attack. Couples nicley with the UA, as I think it counts as a melee unit. 9/10
Kris Swordsman-Can be an incredibly OP unit with those promotions, but too random to really help much. (Still a nice idea) 7/10
Merchant of Venice-A better version of Austria's UA and a Great Merchant combined. Venice can easily spam these with the gold-producing puppets, so nice synergy. 10/10
Nau-Extra movement and gold. Perfect sea exploration unit, comes at the right time, and helps unlock the Fetoria along the way. 9/10
Pathfinder-Want to focus on everything? The Pathfinder does just that, and can serve as your military for the first 20-30 turns. 10/10
Prianchas-Wouldn't be that good if it didn't tie in with the UA, but as it does, it can be a good unit as it comes at a good time in the game. 8/10
Siege Tower-Probaly the most OP unit that ever existed. Never mind Shaka, you've got Ashurbanipal knocking on your front door, ready to steal your techs. 11/10
Winged Hussar-A nice unit of the late game, useful for both attack and defence. Gets a ton of XP with the Ducal Stables, but not much more. 8/10
I've not played BNW yet
(), but from the last 6 months or so of speculation, this is what I picked up.