Peter,
Surely not PHL it was allegedly dropped very quickly due to poor yields and it mostly being 1 way traffic ie mostly UK nationals and few Americans coming in.
Therefore what has changed at BHX to change that ?
Looking at the established Manchester- ORD route , thats being suspended for a few months in the winter. Therefore any AA ORD to BHX surely would have to be seasonal also ?
The other issue is the AA 757s , the airline seems to use mostly 767s to Europe from ORD in the summer ,and expect its a bit tight fuel wise to reach BHX on a 757 westwards.
AA would therefore likely have to be confident they could get good loads especially front end on a 763.
However if it was summer only BHX may well be viable ?
Wait and see if the rumours are firmed up.
Nigel