We haven't seen a new weapon in a while. That's my guess.

It will be... ummm... a returning character.

In the likeness of Luigi, Ness, etc.

How long do u think they will leave the ??? for "this world"....do u think they would clarify what friday's post was about?

This thing has me intrigued...

I keep getting flashbacks from Twilight Princess...

Maybe like Zant, he can use dark matter to create "dark" versions of each of the characters? 

Reminds me of Metroid Prime 2: Echoes....and Super Paper Mario

Update: Rumble Falls

This stage is based on the look and feel of Donkey Kong: Jungle Beat, which was played using the DK Bongos.The key here is to keep climbing up and up.

The tropical setting is quite nice.

The screen slowly scrolls upward, so if you don’t want to get left behind, you’d better get to climbing. Oh, and don’t forget to pummel your opponents on the way.

You’re climbing up, but the water keeps flowing
down, down, down.

The screen’s constantly changing, so it’s fun just to watch, too.

The top of the waterfall isn’t the top! Keep climbing!

Hey! What’s at the top? Huh?

Hmm...I wonder...

It's a level...i fail. That's why i'll never enter the prediction league.

DK's level :|

Wait...what IS at the top?

Cool looking level. My friends aren't huge fans of the moving levels though. Still, it looks big enough for a good fight...very colorful too.

I like how you can use the ladders too...how does that even work?   

Mario climbing a ladder...Old School Donkey Kong style. I don't remember there being ladders in Melle.