The Davies Commission, with Heathrow still in the running, will report shortly after the next election. This could allow Boris to make a "pragmatic" decision to support the Commission's conclusion.
Indeed!
Of course, if he were to be elected for Kensington, he could maintain his "Boris Island" plans.
Not so, a proportion of the airline premium business that is so wedded to Heathrow must be Kensington residents.
Not sure where he could stand and still promote the estuary airport - the residents of Kent and Essex certainly don't want it.