Ppl should calm the expectation in order to not get disapointed. I seriously expect the less possible out of this.
It's either:
1-Nothing
2-Some crappy AR app
3-A Pokémon Stadium game (or some other fighting only game)
I doubt it's Smash related, the artstyle does'nt look at all like Smash's and those 2 pokémon showed would look seriously out of place next to Pikachu. Also the stage does'nt look like a Smash stage and finally I doubt such announcement would be made by the Pokémon Company, it would probably be made by Sakurai via the official site. It also feels like something awfully weird to tease about.
What?! I can't hear you over all this awsome! - Pyrrhon (Kid Icarus:Uprising)
Final Ultimate Legendary Earth Power Super Max Justice Future Miracle Dream Beautiful Galaxy Big Bang Little Bang Sunrise Starlight Infinite Fabulous Totally Final Wonderful Arrow...FIRE! - Wonder-Red (The Wonderful101)
