I believe the plan is for both GLA and EDI to get 757s once the EDI route is started!
Just for reference purposes, the head of CO's UK operations quoted
"Continental's Glasgow-New York route was one of its most profitable in Britain, and it may use larger planes in a few years time."
Not quite the same meaning as Gavin said!
Thought you may want to see the traffic data for the other scheduled service routes to America from the regions.
Other services to America at GLA
AA to ORD: 10933 pax, about 176 pax per flight (763? ops, up 24%)
Overall traffic: 24823 pax, virtually identical (down by 90 or so pax)
Other services to America at MAN
DL to ATL: 14544 pax, about 234 pax per flight (MD11 ops, down 7%)
AA/BD to ORD: 21071 pax, about 170 pax per flight (763/A330 ops, up 11%)
BA to JFK: 11318 pax, about 182 pax per flight (763 ops, up 4%)*
VS to MCO: 19584 pax, about 376 pax per flight (742 ops, down 3%)
US to PHL: 13253 pax, about 213 pax per flight (A330 ops, up 8%)
BD to IAD: 8143 pax, about 156 pax per flight (A330 ops, up 3%)
Overall traffic: 100470 pax, virtually identical (up by 190 pax or so)
* ignoring the PK services as they are the great unknown!
Other services to America at BHX
AA to ORD: 9273 pax, about 149 pax per flight (762/763 ops, up 3%)
Overall traffic: 18020 pax, up 2%