Sorry for double post, though we have some information from the latest issue of Newtype.
It's going to be a crossover of CLAMP's
past title Wish
Original Creator: CLAMP (Kobato, Wish)
Director: Mitsuyuki Masuhara
Series Supervision: Morio Asaka
Series Composition: Michiko Yokote / Nanase Ohkawa
Scenario: Mamiko Ikeda / Miharu Hirami / Reiko Yoshida / Tsutomu Mizushima / Yuka Yamada
Character Design: Hiromi Kato
Animation Director: Satoshi Tazaki
Color Design: Harue Ono
Art Director: Hideyuki Ueno
Director of Photography: Kouhei Tanada
Editing: Kashiko Kimura
Sound Directer: Masafumi Mima / Toshihiko Nakajima
Music: Takeshi Hama
Production music: FlyingDog, Inc.
Animation Production: Madhouse Studios
Here's a copy of the scan from Newtype.
Very interesting that they'll join the two stories together. Makes sense really, because there's not really enough Kobato
material for a whole series. It's also interested that pretty much al lthe staff working on this have worked on past CLAMP
anime adaptations in the past. Goes to show that they know who to use.