I think we need to remember its not just BHX which has seen long haul airlines go.
Manchester had 3 BA 747 routes, British Airtours 747s daily. Cathay Pacific, Qantas, South African, Gulf Air, Air India, Air Canada, Nation Air, Quebec Air, Aeroflot, Sure their are a lot more.
One of the things that have changed is airline alliances.Long Haul carriers now far happier to feed passengers using their partners short haul network to connect to their main hubs around Europe.
Wardair were pushed out of BHX by Air Canada, and by expanding too fast.
The price of oil certainly won't encourage a mass return of these airlines.
However their are airlines likely to come to BHX in the next few years .A Chinese airline, Air Blue probably, American to Chicago,to name a few.
We already know Qatar will be coming soon probably with 787s.. thats a massive addition for BHX..no doubt the usual gloomers will find something to moan about their too
Nigel
Nigel