First of, let’s start with something I’d really see to happen.
Highlander’s crossguard for C hotkey (as long as two handed sword is equipped). That’s it, would still need to put the skill points and have the mana cost associated. A QoL thing!
Common weapon classes for all/most classes.
Say, as swordie, you just are running low on HP and are waiting for pot cooldown or healer to lay down the sweet delicious healing tiles but you still wanna do somesort of damage while not being in too much of a risk that comes when hugging big monsters? Let them use a bow or even magic staff if they wish, not like they become OP with it. Same could apply for archers say equipping sword and shield for some quick and dirty melee.
Also, more weapon variety
Like… Axes, where are those? Slower (when the combat update hits), harder hitting weapons with less critting chances. And of course, fists and nunchakus for monks (and why not for everyone?
Also, perhaps even two handed hammers?
And lastly. Throwing weapons (outside some skilsl), once again intended as putting atleast some damage when you need to be out from melee range. Probably working as consumable principle