george77300 wrote:The 18 High-J config (14F/86J/30W/145Y) can't be matched with anything realistic except possibly the B779X. They will almost certainly order it at some stage. They simply need the space for all those J seats especially as a new seat is coming next year with the A350 and then the B77W. This seat won't be smaller than the current so they need the floor space the larger planes offer to match this configuration effectively.
Bear in mind, the new J seat is being developed, and the layout presumably optimised for, the A35K and 78X that are on order. The additional width of the 779 may not help here. Also, the F cabin will almost certainly be smaller, and I would also add that Airbus has quite a few options beneath the main deck for galleys and crew rest areas. All of which means, IMO, the A35K/78X combination is still more likely to be the replacement for BA's remaining 744s.