Niknak,You state that Nats will be left with Area and the London Airports.Well it may come as a surprise but Nats do have one or two other lesser known
places.Aberdeen,Belfast,Edinburgh,Glasgow,Southampton,Aberpo rth,Birmingham,Farnborough,Cardiff not a mention offshore and approach for Sumburgh,Anglia Radar done from Aberdeen.Apologies if I've missed any out.
I believe that Manchester renewed the contract not so long ago and the BAA contract is being talked about.It is very difficult to change ATC supplier just like that with the SRG overseeing ,so I think your last post missed the mark somewhat.