Heres an idea ive been thinking over lately about strengths for kingdoms to get...
Considering alot of kingdoms have more things/advantages over others why not even it out and make it so each kingdom has some sort of strength
Dustari - get that town of theirs up so they have a giant empire and are the largest of the bunch..
Pirates - Some how script their large boat to be able to be driven around the seas. Able to get up the waterfall at Dustari so they can get in incase of attack etc. Also add cannons for attacks upon the ship.
Samurai - Control the farming land better. Possibly be able to get discounts on seeds and possibly be able to control some sort of element type thing in their fortress considering its open to all. Not sure, this seems to be the only hard thing. Maybe their own farming ground in the back with some type of thing?
Zormite - Bring back the fish state but change it up. Let Zormite only use it with tag on and when going on land turn back into human or bomy form because when you are a zormite you look like a fish. But in water let the form be used to travel through waters much easier and can allow under water travel to any kingdom.
Dunno, I just thought maybe kingdoms could be spiced up...