Wanna bet?
Gup
Or did you mean an International presence like DAL? Not possible for SWA because of the politics to get International routes, slot restrictions and the fact that SWA would have to completely reinvent itself to attract a significant amount of the international traveler. Right now SWA would be in the PeopleExpress (I worked there once!) or Laker Ballpark. It's a huge leap beyond that and would require buying UAL or DAL, something that is not an option for SWA, unless they want to become a large ALPA carrier!