No...say it ain't so!!! I LOVE Midwest and fly it everytime I can. Unfortunately, I fly to Newark alot and Midwest goes to LaGuardia.
It would be a huge loss to those seeking comfortable flights at a reasonable price.
Don't knock Airtran though. I've flown them several times and while they don't quite do as good a job with regards to helping you make connecting flights as one would like, they're not bad at all.