If they want to breath life into these classics, they ought to start by doing the following:
1.) Create an Instagram-able wall right near the attractions, and themed to each attraction
2.) Create special Minnie ears themed to each attraction
3.) Create the most colorful, sugar-laden treats imaginable, themed to each attraction
4.) Create limited edition merchandise----themed to each attraction
5.) After completing steps 1-4 for all of the classic attractions, consider hosting a special evening event called "Celebrating the Classics", featuring all of the classic attractions, and the new merchandise & treats, plus some seldom seen classic characters.
I mean, hey, those things seem to excite people endlessly every other time they do them, so why not give it a shot?