There was an article which speculated about this 6 weeks ago in the Dallas Business Journal:
Legend terminal could be next battleground at Love
$21 million facility is prize for survivors if start-up fails to secure financing
I'm positive Southwest would not want those gates. For one thing, Southwest already has 14 gates in the main terminal and wouldn't want to split up their operations. I also think the terminal is a little too luxurious for the type of no-frills product Southwest is offering.
I also don't envision Continental Express moving over to Legend's terminal as they've already spent a lot of money renovating Gates 41 and 42 in the main terminal. I seem to remember when Continental Express got a building permit for their renovations, the area was approved for 3 jetways, but COEX only installed 2. When AA was told they couldn't operate out of the East Concourse, which they had already renovated, they simply moved one of their jetways over to COEX's area and they have basically shared the space with COEX, operating their current schedule out of that one jetway, sometimes using a spare COEX jetway at times when it wasn't being used by COEX.
AA could vacate that space and move over to Legend's terminal and take the other 5 gates. They'd most likely take their jetway with them, but that would still leave enough space for COEX to add another jetway if they decided to increase their service out of Love Field.
Also, if AA decides to ditch the Fokkers and just go with regional jets, Legend's terminal could probably be reconfigured to have more gates than the 6 it already has now. I know that DAL-LGA routes were pretty popular for both AA and Legend, but I don't think a businessman would want to fly in a regional jet for 3 hours to get there, so they may keep the Fokkers for that and some of the longer routes they may or may not have planned (if they stay at DAL at all). I could see AA switching to regional jets for the ORD service, however.
BTW, could a regional jet even make it non-stop DAL-LGA? Anyway, what are your thoughts? Will AA stay at Love Field and offer limited non-stop service or do you think they will abandon DAL altogether and go back to DFW? Keep in mnd that in past articles, AA always maintained that they started the service because some of their best customers lived or worked a lot closer to Love Field. Now that Legend is no longer a threat, I wonder if AA will still offer their "best customers" to convenience of Love Field departures.