Woaw, we got a crap ton of stuff thrown at us here recently by Sakurai and co!
(Also, I am glad Pikabunz and HyperFalcon agree with me about 40 posts back!)
And guys! I THINK NAMCO BANDAI IS TELLING US TO EXPECT AN UNDERWATER CITY ON THE CLOUDS WITH BUILDINGS MADE OF BEEF JERKY CORAL OF EARS AND LOADS OF OTHER CRAP!!! zOMG!!! PLAYSTATION ALL-STARS CAST PLUS MEGA MAN AND A PURPLE PIE WILL BE CONFIRMED!!!
Yuck, don't even suggest underwater gameplay. Not in my Smash Bros. Water's already been tried once in Smash and look at how awful it is in Brawl. Nobody ever wants to be in the water, swimming, in Brawl.
It could always be like the Water Temple in Zelda (above water), the underwater area in Pokémon Black and White 2, etc.
Edit: For realZs, I think the beef was for "what's the beef," and I think the sky is either a joke of Brawl's intro screen or a serious reference to it. The rest... confuses me.
As for Sakurai's post, I think he basically confirmed all those characters returning (including the sandbag and Mr. Saturn as items). Don't deep read into it. THANK GOD that it seems Sakurai took my preferred approach of confirming all the all but confirmed veterans.
The biggest question for me is "WHAT IS THAT HEART THING IN THE CENTER!?!?!?" New Smash Ball confirmed, is it just a heart container, or something else=???