None of the 0Z models have shifted W of Louisiana. A few have come back east a tad, but are generally all tightly clustered around New Orleans.
There never was any sort of sharp drastic turn forecast; just a gradual, imperceptible turn.
I keep getting the impression they are surprised at the continued southward tilt to the motion.
Face it, mate, the weatherguessers have scrod up big time on Katrina.
Their current guess is landfall between Natchez and N.O. -- offer you 6 to 5 against that THAT notion's wrong, too.