I wouldn't expect another attraction. It will be a lot easier to move around that area. The concept art for it looks really nice. Everything should be ready before the peak crowds hit this summer.
I'm sure they'll retain the high level of theming, so seems like a win to me. More about 'expanding the place' and less about 'adding things to do', it would seem, and there's nothing wrong with that. I'm excited to see FotLK be at home in Africa where it belongs . . .
So, spill one little detail that you think is cool . . . .