^ As far as the general elections, I doubt it. CD9 was surprisingly close in 2012 and the area is moving Democratic, but Pittenger is becoming entrenched. CD13 is a similar story; a few statewide Democrats carried it in 2012, but I think running statewide would be easier than running in an R+9 seat.
Burr is liable to retire, so a seat may open up if any House Republicans take the plunge.
Its hard to tell what happens in LA-05 and LA-06, but those could be.
Why would Burr retire? Him losing in a primary seems more likely.