After looking at the April bid packet, the first 10 or so are senior FO's that have passed up upgrades. The rest are pretty new guys recently hired. I am assuming the new hires will stay unless they get displaced. The seniors will probably upgrade soon if the upgrades keep coming at the rate that they are. Also, a few new hires have quit shortly after. All that said, my personal estimate is 8 to 9 months if all continues. Good luck to you.