I think this would be a terrible idea. As I already said about Auschwitz, restoration is not a simple, neutral, technical process:
Every restoration brings with it questions of authenticity. Nothing can be made precisely as it was, and the whole enterprise is always fraught with questions of "Disneyfication" and the like. Every restoration is guided by a vision of the experience that the restorers want the visitor to have. As long as the camps just were as they were, nobody could really be accused of exploiting their memory. But once restoration begins, this question becomes inescapable. The camps will not just be leftovers from the Holocaust, but a museum shaped around somebody's idea of what death camps were like.I think the same questions apply to any plan to restore the Nazi Party grounds. In the case of the death camps I can see why some people think their preservation is imperative not matter what the cost, but I do not see why we have to preserve Nazi kitsch. Let it crumble to dust.