How might that change if/when the entire 763 fleet gets replaced with all 787 + all 40 WB AB growth order.. seriously?

When the flood gates open for the 737-10 deliveries and NEO constraints open up + continued A220s we’ll likely see 1,000-1,500+ hiring numbers again annually. Delta hits another retirement wave in 2040 passing AA and UA. Even now retirements are strong, but slightly lag UA after 27’ and very much lag AA.

The wide-body fleet is around 145. It could very well be 210-220 when you consider replacements and growth going into and through the 2030’s. Could very well see WBB and NBA get down to ~3 years during such times give or take. Lot can happen in 10 years that changes “time to” NBA or WBB.