Got no dog in this hunt other than I used to commute up to JFK all the time on you guys. (from CVG) and I have a lot of friends working over in the admin area.
From what I have heard, Delta has been trying to sell Comair for a long time and can absolutely find no buyers. Frankly the cost structure is too high and the 'employee problem' is a big negative. Operationally, the flight ops side has a very high sick out ratio. Add in the 'strike' history and you have got yourself something nobody wants to buy. (given the other options out there).
Delta keeps a very close eye on what is going on in CVG with that pilot and flight attendant group. They know the morale problems and rather than staff the airline properly, they would rather cut bait and go with a contract carrier for the regional lift needs. I feel for you guys, I really do. I don't see Comair in the picture in the next 18 months.... maybe sooner.
Being bought by a Trans States or other type airline is another kiss of death. They will just whipsaw you all against each other until there the job is not worth working for (if it is right now). Long term, if I were a young guy, I would give the majors a few more years... and even then, the grass is not that green over there... move on to a real life and job.
After 30 years in the biz, I am glad to be out.
Just my 2 cents.