Just in case there was any doubt, they are using the new parade building for the Holiday Parade. The old one still houses Superstar, as the second new parade building is not finished yet.
I do think this will be an impressive parade and a vast improvement over the predecessor, it's just not something that gets me overly excited. While the parade is certainly more float heavy now and longer, it's still just a parade to me (parade's don't excite me much). A nice one at that though.