Hmm, even if Kikuichi Shunsuke-sensei cannot come back to compose the music, wouldn't it be totally wicked if Ms Kajiura Yuki-sensei can compose it instead.
Imagine, Remastered-Dragonball Z with the awesome European-Techno-Opera beat of anime like
Kara No Kyoukai,
Noir and
Mai-Hime...
Oh, righteous dudes, Totally Righteous!!