One of my wishes that stand above all is next:
No more pet dragon! The Legend had awesome Rage Spirits, which makes me wonder how could the screw that up with a Pet Dragon. Return the Rage Spirits or invent something even better.
Also, not that there is anything specifically disbalanced with any of KB's, they could all use a little more Polishing.
Other than that, I doubt that Katauri will leave us disappointed.
Let us all just trust in them.