I am not sure if the reblend has taken place yet for the immediate Atlanta market, but I know it is in the works. As for octane rating, they are supposedly staying the same, 87, 89 and 93.
I usually have some driveablity issues with my car, I don't drive it enough and I haven't had to take it through more then twice. Almost every year when it is time to emission the car, it hasn't been driven in a few months and has some bugs to be worked out and barely fails. As long as the operator is willing to keep the trans the gear lower then it would usually shift to in OD, then it passes no problem, staying under the maw rpm.
If you have some issues with getting it to pass, I will give you my number and can get you in touch with someone that will surely get it to pass.
Ron