Very interesting proposal indeed!
VB would be very optimistic if it threw 744's on the pacific. That is very serious capacity! However it all depends on the what entitlements they get. They have stated they want frequency in the way of at least seven services per week. Something smaller in capacity then....but what? Discount the A340....777 blows it's economic backside out of the water, even Airbus acknowledges that. However it would be cheap to lease/buy and the chances of getting 777's in the short term are slim.
Then of course is UA. After it restructures and can see a buck to be made, it will go for it!
Like I said I hope BG get's the formula right!