The pilots flowing from the WOs up until about early 2018 seemed to be from an older demographic. 40+. Now it seems that 30+ is the new norm. With some older and some younger.
Recent Group 2 narrow-body Captain sits around 3.5 years as of the latest award at AA. I would expect time to narrow body Captain to settle around 4-5 years. With time to widebody FO closer to 4. And I would expect this to continue for anyone hired into the mid 2020s.
The retirements at AA are staggering. They will turnover about 75% of their current seniority list by about 2031. And as contracts and pay improve I would expect early retirements to increase above their current levels as well. It’s a good time to be an airline pilot.