I had to register just so that I can take part in this awesome topic...
It seems like several people have already been asking for more support for beast characters, and I would also like to put in a vote for this (especially foxes and dragons). I'll also put in a vote for proper robes in the game, or better martial arts costumes.
Now for some of my own ideas:
Multiple tails, for a
nine tailed fox. You know it would be awesome.
Ability to spread Auras onto wings or tails, so you can have characters with flaming wings and such.
An aura that creates a few
floating orbs above the character. It would be even cooler if you could have them somehow disappear as if they're being expended when the character attacks, but I know that might not be possible.
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One additional note... when making beast sets in the future, could you see if you can make the art for the different parts that connect to the chest match up a bit better? I have a dragon character whose wings don't match the scales on his back due to reflectiveness differences, and a grey wolf character who I can't get the coloring of her head to match the fur on her back...