Originally Posted by yyznomad
I think there will be significant changes because of Project XM. My thoughts are that the new J seats will cause some sort of change in prices (higher) and/or certs will become more scarce or upgrading will be more difficult from lower fare classes (not necessarily scarcer I class). Anyway, that's just a guess on my part and I'm not claiming to be a know-it-all.
I think some time in 2007 we will see the old "H" class designation on international flights disappear as AC moves fully to its "simplified" fare structure. We will need a "Lattitude" type fare to use a SWU. Translation - expect to pay a LOT more to fly international J with a SWU.