You know what would be interesting? A simultaneous release of a character for both Pokemon and Smash Bros. I imagine everybody has already heard about Volcanion, Hoopa and Diancie, the three Pokemon
buried within X and Y's code.
In the past there has always been event Pokemon locked away within the code of Pokemon. But what if this time around, especially considering how they've been announcing characters so far (coinciding with Nintendo Direct and release dates and such), they did something like a Nintendo Direct where they announced an event for one of these three Pokemon, and then at the end of the Direct, announced that very same Pokemon as a playable or a Pokeball Pokemon in new Smash Bros footage?
It'd certainly be hype building and an interesting point, if only because nothing like it has ever been done before.