imo, and Advanced/Enhanced Fighting Style feature that automatically upgrade your fighting style when you reach the relevant level would be great. Archery gets the ability to do special attacks from range (I suspect trip/shove, disarm, etc will move from the dmg to phb), dueling gets a riposte reaction when missed while using one weapon, TWF can use a bonus action to get a damage buff on next attack before start of next turn, etc.
One thing I’m doing in my own 5e-derived game is to give tool profieciencies more oomph and having different classes get unique benefits from mastering different tools.
Same could be done for weapons for the warriors, as a way to do the fighting style thing. Like advanced weapon properties that are only usable by masters of a weapon, and warriors get weapon mastery at XYZ levels.