So "to have it operated by a Dornier 328 of Scot Airways for Cityjet" - should probably mean - "Maybe KLM/AirFrance/VLM could sub-lease the routes to Scot Airways for a handsome sum of monies"
Well, last time I checked, with the exception of the aircraft opf Blue Islands, all scheduled work done by Scot Airways is operating the "Cityjet For Air France" product. And with even LON served by a 30 seater aircraft (and all other routes flown with 34 seater aircraft), my guess is that a 50 seater for AMS would be a bit of an overkill capacity-wise. Plus, the route is a bit long for the rather slow Fokker 50 - whereas the Dornier 328 is about as fast as you can fly in a turboprop.