One interesting topic of conversation could be the effect that these population trends will have on house redistricting. Louisiana will almost certainly lose a seat after 2010, but chances are it will be a Republican seat. Assuming the Democrats can keep control of the legislature for that long, Melancon's seat won't be carved up, and New Orleans will still have enough of a black population to keep Jefferon's seat Democratic - albeit by smaller margins than previously.
I've heard that many Katrina refugees fled to Baton Rouge which could cause that seat to lean more Democratic in the future.
