Not at all. This storm will be going over waters that Katrina never touched and the SST's are similar to what Katrina had to feed from. Sheer is minimal and everything is in place for further strengthening. Also, a burst of strength may come soon before landfall due to the fact that the temps closer to TX are even warmer. ERC timing will, as always with strong storms, be a main factor in intensity towards landfall.
Also remember Katrina was up to 175MPH before that puff of dry air.
So where are you?