First I've heard of it. I'm hardly an initiate when it comes to staff names, but a little google-fu is telling me you're referring to the creator of Code Lyoko (of all things). This guy's working with Watanabe..?
Yeah, that's him. I worry about his influence primarily because of his track record--he's worked on several Satelight projects helmed by Kawamori, he was Symphogear's art director, and perhaps most grievously, was heavily involved in the creation of Basquash!. He seems like a dangerous combination of bad ideas and gaudy aesthetics and, while I'm hopeful that Watanabe can rein him into a more tasteful realm, I still fear for Space Dandy due to his involvement. Hopefully my fears end up being unwarranted.