Awesome news. I felt last year was a bit "meh" compared to years past. Of course my favorite years were 2002 and 2003 prior to the removal of a certain boat and island - the trail out there was often very good. Since then they've obviously lost the area to do that haunted trail, and they changed the haunted house behind Nick Central - that used to be the best, and very good.
More actors should mean better haunted houses / trails, and more stuff going on in the midways. I think one of the "problems" with the last few years is that they've added more and more rides. It's definitely good to get more stuff to ride, and to spread the crowds out, but I think it diluted things a bit. Last year I felt like only parts of the park were themed well and had the Scarowinds atmosphere, with the rest of it just being regular ol' nighttime Carowinds. The prior year felt a bit weak as well, which was probably due to them gearing up for Winterfest.
Looking forward to this year, even with a different name

KenB