DFW is a huge AA hub (the largest). In addition DFW is now the fourth largest concentration of S. Asian and SE Asian immigrants. Currently this market is hugely underserved. However there is a problem. Most airliners today cannot fly from DFW to any major S Asian or SE Asian hubs. And since a one stop flight to DFW is a no-no (because a customer would rather fly to JFK, LAX or SFO and connect), this quirk of geography has left this gold pot untouched. Many airlines come and look at the numbers and try to think as to how to make it work. With the introduction of the 777-200LR (if the numbers hold up), this will finally work for the airlines. Air India has already announced that they will use their 777-200 LR for a non-stop DEL or BOM to DFW service. Look for Malaysia, SQ, Thai and CX not to be too far behind. Their are also rumors that PIA (which is the launch airline for the Worldliner) has either DFW or IAH in their sights.