777x no earlier than 2021 and would bet on 2022+, all 150 are replacements. Fleet size by 2020 = 280 (160/777 and 120/380) 3600 pilots as of now. Present fleet =225. First of the 300er's start to go in 2017. all the old ones330/343/345/200er/300 gone by then regardless of what people say, some leases will be extended but only for a short period if required. As TP said EK ship has sailed for the quik upgrade.