Just found a pretty good vacation deal for 8/17-8/21 from PHL-MBJ (Montego Bay, Jamica) operated on a A319 both ways. I see that from CLT US flies a 767. Is there any chance of an A/C upgrade to a 757 or 767? I guess ill have to bring my laptop with a movie since theres no IFE on the A319 anymore.