Oh, they'll find them Do they have 90 757's picked out?? no. I'd guess they have a small fleet purchase already planned, than they will go into the marketplace and pick them up in small quantities, 2 to ten at a time, more if some airline goes TU.
I think this (for sure) ends the mystery about 757 vs 737 that was the main question up till now. The how many and which airframes is TBD.