Hi all!
As far is I know; the arduplane does support both inclusive and exclusive geofencing.
But the question is, will the aircraft respect those geofences in case of failsafe RTL?
Will it go straight through the blue area or around it?
As far as I remember - RTL will still utilize the geofencing - so it should follow the path you have shown in AUTO mode.
However, you can always double check by running a quick sim in Mission Planner.