Eh, I don't know, his "solo" Lareine stuff anno 2000 wasn't exactly mind-blowing....
Also, I have the feeling that this will be neither sounding Lareine-ish, nor will it be metal. The first 2 releases or so he will cater to his old fandom, and then he will try to go all standard pop-rock, probably pretty sappy pop-rock, kinda like Jui.
I hope I'm wrong though.