I've seen lots and lots of people asking for revamps/changes for their respective class. Knowing some parts of this mod are inspired by mmorpgs I thought maybe classes could get subclasses. This leans very hard into the rpg element of the mod but let me elaborate:
Swordsman would have 3 subclasses with different moves: 1 sword style, 2 sword style, 3 sword style
Medic: Harmful medic (debuff enemy), healing medic (healing allies), buffing medic (buffing allies)
etc. These are just a few examples.
Of course this is not fully cannon (zoro uses sometimes all sword styles in a battle) but it could be interchangeable, think FFXIV where classes can be different for the items you wear it wouldn't fit this mod but it could def be other factos.