The Green Tangerine

The Official word from Johnny’s is:

http://www.johnnys-net.jp/artist/info/youandj.html

「KAT-TUN」 赤西 仁 帰国のお知らせ
株式会社ジャニーズ事務所
　昨年秋から半年間に渡り、芸能活動を休止していた 赤西 仁 が、19日（木）夕刻に帰国いたしました。 これに合わせて、4月20日（金）メンバー６人全員で記者会見を行います。

i.e. He’s back.

I seriously hope he’s gonna participate in the new KAT-TUN single Yorokobi no Uta, because the last album was kind of…lacking? bad? ^^;
Well KAT-TUN isn’t KAT-TUN without the A. There’s hope for them yet…

Wiki –

Member Akanishi Jin went on hiatus from the group from October 12, 2006 to April 19, 2007 to study English abroad in the U.S. leaving KAT-TUN as a 5 member group for 6 months.

Akanishi took time off to study language starting on October 12, 2006, but returned to Japan on April 19, 2007 to resume activities with KAT-TUN.