Hi
So i have two suggestions for you, first one is that adding a road refresh future / botton (manual and automatic with 5,10,15,20, intervals) which refreshes the road a head so if there is a traffic change in road a head it changes the directions (with the sound that alerts you that "road refreshed" ) , of course if you are near the next turn or something like these it doesn't change this turn or direction and changes further ahead.
The Second one is that adding something like a custome map which you can add or share a restricted areas with different colors and diffrent names so that you can choose whether the map give you direction through the restricted area or it doesn't, also if it gives you direction through it, it alerts you that the directions given are in the restricted areas with names, like tolls.
I don't know if these suggestions are even possible to pullout but i know that these changes are so helpful at least for many people around me.