I've been wondering why there has been less promotion of a site just north of the M4 between Reading and Maidenhead, or just south of it between Maidenhead and Bracknell.
Red herrings seem to be flavour of the month at the moment.
Nobody, but nobody, is seriously looking at any alternatives other than a Thames Estuary airport or adding runway capacity at an
existing airport.
Or of course the do-nothing option ...
Talk of an all-new airport to the W or NW of London is pure kite-flying.