Altitude and gps level signal
I'd like to have indicated by waze the raising or lowering of altitude in the next km and the level of gps signal (maybe using a sort of wifi style indicator in the pinpoint button on the lower right).
Altitude it's good for fuel saving!
You're driving a car, not an airplane ;) ... what would an altitude indicator really buy you qua functionality: you can cut down on speed as the next kilometer is going down? So you would constantly look at Waze to see whether you can slow down?
I think there are more important things still missing in Waze, just my 2c.