Guys, it's fake. It's really really fake. This is some bored kid trying too hard.
Aw, don't be too hard on him. He might be a bored 40-year old trying too hard.
Seriously, (and yes, I know a lot of ya are tired of listening to this) if any of this, and I mean any, is true, we have witnessed the worst leaker in the history of the Internet.
Here's some of his continuity errors:
*Smash World: Won't bother with name, but he said it was a 3DS version, now it's a Wii U mode.
*Wonder-Red: Playable, then AT, then Playable again.
*Isaac: Consistantly playable, but he was part of the Splatoon DLC, and now he's a Smash World unlockable.
*Mach Rider: The Excite Bike character... never minding that Mach Rider is its own game. Reminded, yet didn't change.
*Phazon Suit Samus: Umm... forgotten.
I'll be blunt; all I care about is Isaac. Everything else with this is gravy, but the only character I want playable is Isaac, so while I know all leak news is BS, I will pay attention if only Isaac is involved.