A couple days ago, the Wall Street Journal reported on the rich residents of NO's Uptown neighborhood. Apparently they've been doing OK, including establishing a helipad. The article is apparently subscriber-only, but a summary is here.
The summarizer (not the WSJ article) ends with this cheery note:
Before the water has been drained from the place, plans are being laid and it's not looking good for Porgy and Bess. It's not just the streets that are going to be sterilized. New Orleans is about to be de-germed and de-poored. Well-to-do African Americans are welcome, but the Ashton-Reiss set are already speculating about how the new New Orleans might just become a Republican bastion.
UPDATE: The full text of the article is available in "Old-line families plot the future".