Quoted By:
>The film would've been set 3 years after Monsters Unleashed,Fred and Daphne married,Shaggy and Scooby travel around the world and Velma has a happy life with her boyfriend.
>We would see Scarppy Doo return as villain and other classic monsters with new ones.
>The gang would return for one more time to resolve the mistery and stop Scrappy.
>In the end everyone would have a happy life including Shaggy with his girlfriend named Crystal.
>Scrappy would be beaten by old Hannah Barbera characters like Jabberjaw,Hong Kong Phooey,Top Cats,etc.
These are James Gunn's original ideas before the movie got cancelled.