Rosalina & Luma are
confirmed as a playable character in SSB4 and the guardian of the star creatures in Super Mario Galaxy. She was a well requested character for SSB4. Not only was she on one of the Wii's best platformers, there is a secret picture of her and Luigi hinting they like each other alot. She seems to fit in well with SSB4 due to her abilities. She is an unlockable character in Super Mario 3D World.
Neutral special move: Luma Shot (Sends/summons Luma)
Side special move: Star Bits (Luma fires out Star Bits)
Up special move: Launch Star: uses a Launch Star to propel herself long distances.
Down special move: Gravitational Pull (Pulls items close and negates some moves)