'It is what it is...'
Comair is different things to different people. Keep in mind that everyone's perspective is different and while it may be appropriate for one person to 'wait it out' it may also be entirely appropriate for someone else to 'jump ship'.
Those of us who were hired before bankruptcy were hired with the understanding there would be a long upgrade. I can only speak for myself when I say this was an acceptable trade off for decent pay (even as a First Officer) and a retirement plan that would make Comair a 'career airline' if one wished. All of the things that made Comair a decent place to work as an FO are now gone thanks to bankruptcy.
Comair has openly hostile management and a dilapidated scheduling infrastructure that can make life difficult for it's pilots. Quality of life varies day-to-day for line holders and is pretty bad all the time for reserves. If you live in CVG or NY life can be good though.
I suspect a lot of people who were hired at Comair who were open to the possibility of making it a career have changed their minds. I certainly have. At the same time there are many people who are content at Comair which is why upgrade is still so slow. For anyone hired now, upgrade won't be five years. If I had to guess, I'd say someone hired tomorrow will upgrade in three to four years. It could be longer if there is any growth, but in my opinion any growth on the 76 seat side will be at the expense of the 50 seat side.
I don't see Comair growing to it's pre-bankruptcy size for six to eight more years. This is based on 15 76 seaters a year slowly phasing out 50 seaters before growth aircraft arrive. The good news is the 76 seater pays more than the 50, so everyone will make more money going forward.
I don't believe someone's decision to stay or go is a right or wrong decision. It's an individual decision based on one's own situation. There are many reasons one should stay and many reasons one should go, the goal is to make yourself happy and if you accomplish that you are doing very well. Of course not everyone will make the right choices because we can't predict the future, after all, if we could predict the future we'd all be stock brokers instead of pilots.