Here’s a preview of the Mouryou no Hako feature from the upcoming issue of Newtype magazine, which will be out tomorrow, revealing CLAMP’s original character concept for the series:
Very nice, I hope we get to see the entire thing. Nekoi is definitely in charge of the male characters, and I think Mokona is in charge for the female ones (like XXXHOLiC).
The article also announced the cast list, it’s huge and can be checked here.
Furthermore, according to the magazine, the official website of the anime is http://www.ntv.co.jp/mouryou/ but it is still unavailable as of now. It’ll probably launch tomorrow once the magazine is officially on sale.