Would there have been a market for a 757NG -250 ?
B757 was never really upgraded/refreshed, 757-300 seems to be a strech to far.
- range 4500-5200 NM
- full 737NG cockpit commonality
- capasity 220 in 2 class config
- newer version of PW and RR engines
- 757-300 wings and undercarriage
- winglets for modern look
- 737NG interiors
Investment would not have been too dramatic for Boeing ...