http://www.oricon.co.jp/news/confidence/86831/full/
http://natalie.mu/music/news/48152
details confirmed, "Advanced Alternative Media" handled album production, hitomi is their first Japanese artist to handle. top pic is the cover.
from the description, this is going to be all rock/club music.
oh and,
"Rollin' wit da Homies ft. Rivers Cuomo" announced collab now