I would be very surprised if they kept F seating. It would make more sense to put 126-138 seats with three FAs, though that would be getting into A220 territory -- why keep both (other than to combat the aircraft shortage)? And why come up with a new domestic F cabin product that would require (1) training and (2) IT programming to sell? They are way to cheap to do that. Not to mention the CASM of the A220 is way below that of the A319. I honestly wonder if they would keep the plane at all or try to sell/scrap them.

-J.