I haven't heard anything about Mayu or a new drummer. Kamijo hasn't written in the FC diary since early August.
Kaine, American Lareine fans are not a match for Fatima fans. Sorry. ^^; Kanoma was understating the case when he said they were competitive and I don't think Kamijo really had any clue at all. Those girls were VICIOUS. One of my best friends who used to live in Japan was a huge Fatima fan and her concert war stories were horrifying. Girls at Fatima shows used to end up with broken ribs, piercings ripped out, serious stuff like that. It wasn't like the accidental injuries fans might get at another band's show; the Fatima fans were actually intentionally hurting each other in an effort to take down anyone who got between them and sexy Kanoma. I liked Fatima and would have enjoyed going to more of their concerts than the few I did, but the fans were just too much. It must have looked and sounded impressive to Kamijo watching safely from the VIP area, but I don't think he had any idea how bad it really was in the middle of the audience, and I'm sure he wouldn't like it if the Fleur started beating each other up like that.
(edit) I just reread the article and noticed that Kanoma sounds about as envious as Kamijo, that Lareine has fans who smile blissfully instead of clawing each other to pieces under his nose. (LOL) A few months before they did that article, Kanoma appeared at an Applause Records event live, at which he sang "Saikai no Hana" as part of a session band. We Fleur smiled and waved our flowers at him just as we always do during Saikai, and he looked so happy. I think this is a case of "the grass is always greener..."