Hey I'v got some Ideas for some units, Here's a list. And a desc i guess.
1: Dual Wield Swordsman - A unit with 2 swords
2: Assassin - A dagger (Less range) That has 1.5 Speed (Lets say the normal sword/spear have 1 speed. Its the simplest way i could put it)
3: Dwarf - Smaller unit, with different classes eg: Dwarf Speer, Dwarf sword.
4: Knight - Its a Unit but armored, Like its where you hit the armor but does not effect the unit
(Its Kinda Not relistic but yea!)
5: Mage - Ranged unit it has a Staff that summons a Orb that goes above the target then turns it into a mini cloud then A Bolt comes down!
Thats it, I will share with you any thing i come up with, And not on twitter or any thing rather than Itch so other Devs looking for ideas can see this. and maybe take this into there game, =D
Also Nice model for the new Castle. And the OutPost Tower. I like it!