Pokemon has 2 new Pokemon available
Vivillon, a Bug/Flying type Pokemon (which was heard that it evolves from Spewpa) and Noivern, a Flying/Dragon type Pokemon
Fairy type has been confirmed as well, the previous Pokemon as well as the new ones will be fairy types: Sylveon, Gardevoir, Marill, and Jigglypuff.
The new attacks available are Moonblast and Fairy Wind which will be Fairy type moves.
Mario appears as well the new games are Super Mario 3D World, Mario Kart 8, Donkey Kong Country Tropical Freeze, and a Super Smash Bros game for the Wii U and 3DS
Super Mario 3D World - A Cat Bell that turns Mario, Luigi, Peach and Blue Toad into Cat forms
Mario Kart 8 - A New Mario Kart game where gravity is added
Donkey Kong Country Tropical Freeze - Dixie Kong is playable at that game
Super Smash Bros for Wii U and 3DS - First Super Smash Bros game on both consoles.