http://youtube.com/watch?v=eAIofUYGj7Y
First half is zelda (she looks improved, which is nice), second half is ZSS (who looks like she could be really fun to play as). Also of note is the improved AI on computers. Ike was actually using fairs as a main form of attack.
Omg Witch Zelda! Yay me! And Zamus looks really good too. She's so pretty and elegant when she attacks!
And Fair is like forward jump attack I think...