I know it's been tossed around the Discord for a while that people think rogues should get Weapon Finesse at level 2. Let those sneakers have their fun.
I'd say the Finesse Training of the Fencer (ie allowing them to add dex mod instead of strength to damage) should remain either Fencer exclusive, or be an optional feat that other classes could take if they have Weapon Finesse as a prerequisite.
I think weapon Finesse should just be made baseline for all classes. It allows for a lot of different builds to be more viable without the need for the feat cost.