Quite a few years ago, back in the 80s, I saw a very nifty graphic of shall we say a display sequence (it wasn't) with the flight path of the aircraft shown by a ribbon. Where the aircraft banked and turned this was shown by a change in ribbon presentation.
This graphic developed from radar tracking was set against an outline area map.
It should be possible to create a display graphic for a given display and then superimpose it on a particular display site. Where the flight path infringes avoidance areas then clearly there is a risk that may be avoided or mitigated.
In the first instance air show organisers could provide their base plan to display teams. In the second display teams could return the combined graphic demonstrating their proposal for a low risk display.
That software was around over 30 years ago; it should be possible to introduce it for the 2017 season.