This might not be what the game needs the most right now, but I think there's not enough interesting feats to use with melee weapons.
There are like 5 feats in the weaponry skill tree, 3 of them are just buffs to your attacks. So we end up with Circular Slice for swords, and Tremendous Force for Maces. Come on, we need something better than just spinning once with a sword or hitting the ground really hard with a mace! The Pike doesn't even have a usable feat. At least give us 1 more actual feat for each weapon.
Maybe a lunge for the sword where you do a quick jump forward with a stab, inflicting bleed/stun.
An impaling charge with the pike which you can change directions mid-charge, dealing big damage based in distance traveled, maybe even dragging players along like when they're grabbed by lions. (BTW why is the pike's main attack a horizontal slash? Make it a thrust with no forced movement and camera lock like in ARK! Maybe a bit slower for balance).
The mace can have like an uppercut where the user jumps with the momentum of the upward swing, moving a little forward while knocking up/inflicting massive torpor to the target.
Maybe more weapon types would be cool. A lot of icons in the two-handed skill tree represent a two-handed sword being used so I'd really like to see that implemented into a real weapon in-game. The blackjack and Throwing knives have special uses but maybe they should get some love too? I don't really know how tho.
Those are my ideas. All of them have a bit of mobility to help with the rather static movements of most weapons. Hopefully I'm not suggesting something that's too hard to implement.. Sure, they're not historically accurate, but this game wasn't meant to represent historical pirates anyways. You know, with cyclops, magic, undeads and all of that.
If you have anything you'd like to say, feel free to do so .