I dunno, judging from this guy's post....many big names behind this project. It is almost a guaranteed success looking at their pedigree.
I know nothing about Halo (apart from the huge success it was), but I won't be able to miss this being the Studio 4C fan that I am...
http://xspblog.com/2008/10/27/studio-4c-punch-4-higan/http://xspblog.com/2009/01/15/studio-4c-nike-id-realcity/http://xspblog.com/2009/05/30/studio-4c-first-squad/Also:
Bones - RahXephon, Wolf's Rain, Scrapped Princess, Eureka Seven, Angelic Layer, Darker than Black, Soul Eater, Ouran High School Host Club, Fullmetal Alchemist...
Production IG - Patlabor, Ghost in the Shell SAC series, Blood: The Last Vampire, Blood+, xxxHolic, FLCL...
Toei Animation - list is too long to put here, but they worked with big names like Dragonball, Dragonball Z, One Piece, Kanon, Air, Clannad, etc.