Just looking at some of the specs from Boeing:
http://www.boeing.com/commercial/787...ackground.html
Seems the 787-8 is the would be the ideal replacement for the 757 as it appears to carry around the same amount of people (Thomsonfly 757 = 235 pax). But with a max of 250 seats, wouldn’t they have to have to look elsewhere for a 767 replacement, especially the -300ER? According to the Thomsonfly site, that carries 315 with premium (328 without). The 787-3, although can carry more pax, doesn’t appear to have the range of the -300ER.
Wouldn’t the 787-8 require reduced capacity on some of their long-haul bucket and space routes?
Mind you, as you say, they have already started introducing the 737-800 into the UK fleet, so I guess thats the future of the fleet (or part of it at least).
Cheers,
eP.