I went to the Air Inc conference this weekend. Got to talk to several of the AirTran folks. They were pretty enthusiastic about the company and, based on their opinions, "it's just a matter of time before the Midwest buyout happens." They base this on two things- AirTran now owns 57% of Midwest, and they are putting 3 AirTran people on the Midwest board of directors later this year (not sure when- I seem to recall this summer).
Also, class seniority is based on age- older guys win. There's a mix of 717 and 737 in each class. They're also taking delivery of more 737s and looking to buy several 717s from an Australian airline.
Overall, I think it would be a great opportunity to fly for them, with a reasonable chance for upgrade within 5 years.
Stetson20