So basically, we could get:
-Adventure Mode / 1P Mode explained.
-"Character Customization" explained.
-Newcomers: Ridley, Palutena, Takamaru, Pac-Man, etc. (Or Simon Belmont. I can dream, dammit.)
-Veterans: Meta Knight, Ness, C. Falcon, Yoshi, Wario, and maybe Jigglypuff.
^-Elaborate on Reworked Veterans (Likely either Yoshi, Wario, and maybe Jigglypuff.)
-Stage Builder.
-More stages confirmed.
-Explanation on the two boxing rings and how to switch them.
-Release date.
-Street Pass and Spot Pass features.
-Alternate Costumes.
-Music / My Music.
-Assist Trophy explanations.
-Item explanations.
-The CSS design.
-A new mechanic.
-A third party character (Pac-Man, Simon Belmont, Bomberman.)
-Snake (Not quite disconfirmed yet.)
Man, I'm ready for anything.
RIDLEY PLS