Apparently they just release the product page for it... From what I read it will be named as Fostex TH900 and released in Jan. 2012, featuring 1.5 Tesla flux density (gimmick? what's the Tesla density of Beyer T1 again?...) Also there's an interesting Headphone DAC + amp combo named HP-A8. They said it will be "groundbreaking" and it is their "top model". Looks really promising as Fostex has been showing us their capability of making top-of-the-line amplifiers.
http://www.fostex.jp/news/199 The page is translatable by Google Chrome.