"A villians park would be cool. In fact I have a suggestion for an attraction, Yzma's Not So Secret Lair Coaster. If you watch any Kuzco / Kronk movies or the Emperor's New School show the attraction is a no brainer........PULL THE LEVER KRONK.............. W R O N G ... L E V E R R R R ...."
That is a brilliant idea!! I thought the same thing when I first watched Emperor's New Groove.
It would also be nice to see all the villians together outside the Villian Store in (MGM) Hollywood Studios, but a whole themed park does seem a bit of a stretch. As it is the Hollywood Studios park is good for about half a day. Most of it is shows and shopping and the shows aren't "amazing" enough for me to revisit every year. Aside from ToT, RR, Star Tours, dining, and various character sightings I do not see much else to do. IMHO, they need to add more to the existing rather than building a new park just yet.