Right now! I've just posted a beta so that people can get an idea of where we're going. There's no circuit depiction at all at the moment, and no nomination of circuit direction.
As before, runways are highlighted when on your last route leg, and the nearest runway is highlighted. What is different is that you can also select a different runway at any time by bringing up the airfield plate and tapping a runway end. What is also different is that once a runway end is selected, information is displayed at the top of the screen over the map including the runway name, dimensions, elevation, circuit information (where available) and the tower frequency.
Please download the refreshed beta (uninstall any older version you're using) and play with it on the simulator and let us know whether you think this is helpful, and if you'd change anything.
Again, this is designed to make SkyDemon more helpful in that phase of the flight where you start thinking about your destination: talking to them, joining, setting up etc.