Revealed at the end of the Nintendo Direct, a new challenger is joining the cast of the new Super Smash Bros. game: Rosalina and Luma. Note that the two are technically a single character, as Rosalina controls the Luma in battle.
You can check out the reveal trailer, which also shows some in-game footage of Rosalina, below:
Also worth noting is that Rosalina is also making an appearance in Mario Kart 8, making three games that the character is making appearances in such short notice (four if you want to include the Japanese-only Mario Kart arcade game).
Do you think Rosalina's a good addition to Super Smash Bros.?