Who knows what will happen ? Lifeline routes to the C.I.s will "stay strong" - in the sense that they will be absolutely essential; but who , apart from medical cases , will be using them; & in what numbers ? Yes, if these routes remain the only points of access to/from the U.K., then they will certainly be used; but it is very uncertain as to how many people will be using them. I can't see numbers picking up for a considerable time. Very much hope that I am wrong !