For discussion!
just looking at an on old ( not too)airfield map from Heathrow. Know(and now) it’s all hypothetical..but what would the consequences and future have been if the 05/23 runway had been retained..both operational and financial?
Terminals could have been planned and thought out..on a complete East...west orientation .inc.the maintenance area..which possibly could have gone...
too late I know..but could have worked?