If I was a betting man, my money would be on Q1, or possibly Q2, of next year.
Obviously that would mean that any use of the Max in S20 (starting end of March) would be on an ad-hoc basis, since the schedules are already in place, but many airlines will otherwise be desperately short of capacity for the Summer season.
Last edited by DaveReidUK; 28th Oct 2019 at 10:27.