They need to get them out much sooner than the end of Nov.
780Ti is out soon and 780 prices have dropped to make them a more attractive solution to consumers than the reference R9 290X with that gawd awful cooler. The longer AMD wait to release custom cooled versions of R9 290 and 290X the worse it will be for their reputation.
It's getting kinda pathetic watching AMD eff up almost every GPU release with either poor drivers, poor coolers, or delays. They invariably allow Nvidia to waltz right in with a counter punch that leaves AMD reeling. Everyone but AMD sees this punch coming a mile away but AMD still fall for it almost every time. It's almost too easy for Nvidia sometimes.