YouTube account SmashCentralOfficial has posted a video showing a character selection screen for Super Smash Bros. Wii U and 3DS.
The screen is almost certainly fake as previous Smash Bros. games featured far more information on the selection screen and Wario appears to be taken directly from Super Smash Bros. Brawl. Ganondorf is similarly copied straight from his Wikipedia page image.
While the screen is fake, here's an extensive look at everything we do know so far and there's much more information here. The 3DS version of the game is set to be released this summer while the Wii U version won't be out until winter, presumably to make the most of the shopping season.
During the latest Nintendo Direct, which focused solely on the game, director Masahiro Sakuri detailed Sheik, Zero Suit Samus, Yoshi, and Pokemon's Charizard and Greninja.
We'll have the actual character selection screen to show you as soon as it's available.