Sounds like a fun time!
We just spent a week in New Orleans. The French Quarter did not flood. Many areas did not flood. I asked at Emeril’s in the Warehouse District - no warehouses - used to be that way now it is hotels, restaurants, convention center, near Harrah’s Casino, and the waiter said they didn’t flood in that area either. They want tourists to COME BACK they are ready and waiting for you!