Apparently, Rosalina from the Wii's current most-popular game will be making an appearance in the Wii's most-popular upcoming game. She's going to be an assist trophy, as one might imagine, so she won't be playable. However, it's nice to see another Nintendo character join the obscenely large roster of folks showing their faces in the upcoming game.
Other tidbits of worth from the time enjoying the demo at Jump Festa pertain to another assist trophy in Duster from Mother 3, the Sandbag actually existing as an item during fights and playable characters Kirby and the Pokémon Trainer, who plays like his N64 version and shouts the name of Pokémon he is using, respectively.
[Via Go Nintendo]