5. Wreck-It Ralph
The Pitch: A further exploration of not just Litwak's Arcade, but the gaming landscape in general, touching on console and online gaming also, as suggested would be the basis for a sequel by director Rich Moore.
Likelihood: Wreck-It Ralph wasn't a Pixar-level monster success, but it did pull in $471 milllion worldwide (as well as wide critical acclaim and an Oscar nomination for Best Animated Feature) which is nothing to sniff at. This, combined with the fact that there's so many video games one could touch on for ideas, damn-near ensures that we'll get to see this one eventually.
8/10.