Yes, your right. 320's are older. I hope they all stay and the retirement rumor is just that. I don't know if they have life extensions available or not.
I really do hope we see significant hiring soon. I hope the mainline numbers grow as shown in previous posts.
I have the worst schedule and associated quality of life that I have had in many years. I hope my family hangs in there until I can be based back at home. Displacements sucks. Commuting sucks. Reserve sucks. This job sucks right now. (rant over)