From EWAS:
Expected: as from around 1430lt 3x French Ajet for 1 approach, probably the same ones as those expected on the 18th (on their way back from Leeuwarden).
Edit: be aware that the time mentioned conflicts with the ETD that is stated in the Leeuwarden-forum: "Alphajets en Eurofighters vertrekken op 19 mrt 1400z (15:00lt)"
Credit: the guys at EWAS.
Stephan