Victini also appears to be Fire / Psychic! It’s the Victory Pokémon, has the Multiplied Victory [しょうりのまし] ability and is 0.4m tall and weighs 4.0kg. There’s also artwork for Dento and Aloe:
Furthermore, here’s what Gamefreak director Junichi Masuda stated today:
This time in Black and White, there’s new Pokémon till the end. Only new Pokémon come out!
In addition to that, a new video from the japanese Nintendo Channel, displays a small scene with Team Plasma members and advertises the video chat functionality.