According to press release on their website there are some changes at LCY for VLM.
As of Jan 5th 09 the LCY AMS VLM flights will be operated with Cityjet RJ85 - 8 services a day - an increase in seat capacity of 45% in each direction!
VLM are to operate the LCY EIN route twice daily. Again an increase incapacity from the current Cityjet Dornier to the VLM F50's.
Plus the press release mentions that VLM are working towards merging their frequent flier program in to the AFKL Fly Blue scheme.
Seems that joining AFKL has enabled VLM to remain the dominate player at LCY.