Where? Just move it to Baton Rouge.
And do what with the 600,000 people living there?
As a citizen of Baton Rouge, let me just say that we know New Orleans, we love New Orleans, but we don't want to be New Orleans, or the "New" New Orleans. It's a great place to visit, but if we wanted to be there, we would have moved there.
I can guarantee the people on the northshore of Lake Pontchartrain don't want to be New Orleans, either -- most of them moved over there to get away from New Orleans.
If New Orleans is going to be rebuilt, please don't do it here.
Just rename Baton Rouge...to New New Orleans!