While Airbus has bet on the jumbo markets, Boeing is betting on a different market
Boeing is betting on the long haul point to point market. It let to a kind of earthquake in Seattle to see Airbus (betting on A380, hub-hub) was eating up this point to point market with the A330-200. This let to the birth of the Sonic cruiser and now the 7E7.
Comparing the 330 vs 767 and saying it will be the same for 7e7 vs 330 is unrealistic IMO. Unlike the 767 Airbus 330 will still have the right size & range when the 7e7 arrives. The 7e7 design proves it ...
Over the last two years you can see Boeing engineers are step by step forced by the airlines from a fast ultra long range design into a short/medium haul efficient people mover.
I think thats were Boeing will sell most 7E7´s. The market is much bigger then long haul & airlines indicated another fancy looking Boeing 330 is second priority. And it´s coming through in Chicago now.
I expect no quantum leap efficiency improvement from composites. Certification, damage controle, inspection & price are still not superior to the newest aluminium alloys. Composites are still used mainly in secondary structures (interiors, fairings etc.)
As for the engines, I think the "bleedless" engine is a lot of PR
. Less bleed air ok. But airco, flaps, engines starting etc without bleed air ... I question the advantages over the disadvantages for the alternatives ..
As for the engine-wing combination leading to enormous unmatched advantages ... I have seen no concrete indications for this, nor can I imagine them ..
I think the 7e7 will be launched soon and a lot of them will be sold, however Boeing is using propaganda to, it is wise to keep the feet on the ground listening to them.