I actually said CVT had lost "very few" operators.
Rumours have abounded about RVL (among others) leaving and they still might (as might any other operator). They do have an issue with not having 24 hour opening for their Coastguard "on-call" contract (which is why they have a couple of aircraft at BHX) however the fact is that they are presently still at Coventry. I have little doubt Sir Peter and his team will try to keep it that way.