Yes, why should Kuu change? She's happy with the way she is. She's honest with herself and her music is "Koda Kumi". I don't think she really needs to change. Of course, after the eargasmic No Man's Land I wonder if she'll do a rock album one day, but she'd still be Kuu.
And thanks for the translations, tenshi. <3 All for you made me cry. It's so beautiful. ;___; <3