Actually, a few of us prefer Go-go because of monthly pay membership compatibility across several carriers, including DL. The merger is filled with fragments, that is one of the few that gives a benefit. Business class is another.

If the OP was concerned about a 717 flight by AirTran, this entire class of aircraft is being leased to Delta, supposedly at a rapid pace, although I think there are more than two dozen still operating. I can't see SWA converting the electronics for a short period of time and then DL reinstalling Go-go.

But SWA could arrange special pricing with Go-go I would think, subsidizing it as needed to "defrag" the situation. But they could have offered free baggage on AirTran years ago to eliminate that fragment as well...