You never know, but the 99 hires are very close to the 88 hires due to low number of returns from furlough. Adding internationally and very high retirements, I'd say 6 years( add 3 yrs if 65 goes thru. But...you never can tell in this biz.
Not when all us westies senior to you 99 and 88's take all the upgrades in PHL...we are senior you know