Well, they could add aircraft, but for live arrivals or departures, it would not work because it will be too confusing since 1 day is a hour in AM, and they have to find a time to fit all flights of, let's say a major airport like YYZ in PW#1727, probably 450 flights in one hour. Everyday airlines are creating routes to that airport and the time just get's tighter.
To display the places could be easy, just label them with the call letters/IATA, on the map. That would work.