Here's my guess...
LAX will be a new crew base. The city is investing $400 million in a complete renovation of Terminal 1. The existing US Air gates will be transferred making it an all SWA facility. They are also building an escalator bridge that will link Terminal 1 with the US Customs facility in Terminal 2, allowing for SWA international arrivals at LAX (Mexico, Central America, etc.). In addition, it has long been rumored that LAX would become an ETOPS maintenance and crew base for SWA to support Hawaii ops. I know there are a lot of guys on the West Coast and in SoCal that would love to see this happen.
LAX's Terminal 1 Getting a Makeover, Going All-Southwest - Makeovers - Curbed LA