This is good news but also a make or break time for Republicans there.
For years Republicans have pointed to New Orleans and LA in general as sexamples of what happens under continual democratic control. With Republicans in they're going to need to show some success and make some gains, to stay in power and continue to make those gains, if they don't want it to bite them in the ass. They do well here and it helps to validate some of the rhetoric over the years they had towards NOLA, fail and it creates a bigger problem.
I'm hoping they're up for the task.