It'd be nice to have an automatic pathway system that uses a highway code.

For example, traffic keeping to the left and faster traffic separated from the pedestrians. I don't like it when my waypoints make me bump into every single player and NPC. 

I'm also wondering if trade carts could experience damage if driven incorrectly or into each other. I know this would be silly and easily taken advantage of by mischievous players, but could add a tiny sense of realism where driving is concerned?

It might also mean fights with guild blockades when trying to get carts or even horses and trading pedestrians through a gateway or guard camp?