There's a reason Sleeping Beauty Castle does not look as much like Neuschwanstein. If you look at the original drawings, the top Sleeping Beauty Castle is built "backwards". What is now the front was originally the back of the castle.
I think using a replica of the Chinese Theater was a wise idea. The Chinese Theater is a very strong part of the Hollywood that never was. While a new design might of been good, I don't think it would be as strong.