I can't picture Kurogane dying, it's just not his style. He'll probably be up and about by the next chapter: 'It's just a flesh wound'. Or maybe not. But by the look on the last page, it didn't pierce him right through his stomach or anything... just chopped off a piece of his right side.
Oh, and bye-bye, Fai/Chii pairing (y'know, unless CLAMP are aiming for another X).