I don't know if this rumor went around before, but I'm pretty sure they said that they aren't breaking up because they're all too close. In another case similar to this, Amy Lee did a solo act for the Nightmare Revisited album. Evanescence isn't breaking up though. They lost a few members, but from what I've heard, they started the band again and they are making a new album. I'm pretty sure that's what I heard.