From what I'm hearing AF/KLM will have little to do with this apart from being the parent.
The F50s and crews will be transferred to Cityjet and the F50s will eventually be replaced by RJs. The high pax rotations will transfer to RJs effective for the summer season with the F50 doing some of the lighter rotations.
Makes Cityjet a very strong player at LCY.
Looks like BA missed the boat (perhaps intenionally)
Tom