I saw it long ago here: http://chibiyuuto.livejournal.com/
Yes... I am aware that its a fan-page... but they have always given accurate info. They showed first images of CLAMP in Wonderland 2, plus they made the announcement of the Tsubasa Tokyo Revelations (the 3 ova) first than anybody.
Plus... Tsubasa 3rd Season was scheduled for last april...
Anyways... browsing that page I saw several new CLAMP in Wonderland 2 screens... I seriously need THAT video (being the CLAMP-addict I am).
Oh yeah... xxxHoLiC season 2 is also mentioned on that page...


I won't say anything since it would be spoiler... but the anime was TOO light for the current manga... specially the Tokyo season (which is from were the OVAS will be made)

Tsubasa manga is incredible... while the anime, while enjoyable at times, lacked sense.