They apparently demolished Micky and Minnie's houses, ect. when they did they Fantasyland expansion so I wouldn't be surprised if they changed anything. I think most modern visitors aren't familiar with The Song of the South, and even if Princess and the Frog wasn't a major success it is definitely more recognizable. Plus if there are more rides/attractions featuring PATF characters the DVD and merchandise sales will probably increase, ect. I can see why they would do it, and honestly I wouldn't mind it. I personally loved PATF.