Details about the next Japanese Wi-Fi Pokémon tournament have been released, and it's called the Kanto Cup, which is exactly what it sounds like: only gen 1 Pokémon. Aside from Mewtwo and Mew, of course. It goes without saying that Mew isn't the clear #2 gen 1 Pokémon anymore, so your mileage on this ban may vary, but they always ban event Pokémon regardless of actual power anyway.
Either way, I'm probably going to sound like a fake Slowflake by saying this, but the idea fascinates me, if only because it's basically the gen 1 metagame with a 2013 sauce. What would the RBY metagame be like with all the changes the game has seen in the last decade and a half? We may see part of the answers there! And the best part is, they didn't even botch it by making it into one of these doubles tournaments they seem to love so much!
Edit: Forget I said anything. Sun team domination much?