There are. There are many female singers fronting bands trying to make it in a murderous industry. The truth is Floor is a great artist, no arguments there. She is curing what ails Nightwish FOR NOW. The problem is does Nightwish want a Lucassen with a vagina long term? Floor has an incredible career on her own that she really does not need the aggravation of being relegated to "hired gun" status on Nightwish. More importantly, does Tuomas really want another creative force working on "his baby", which Nightwish really is? You know that Floor will attempt to interject a lot of creative ideas into any project that Nightwish does. I do NOT see her being told to "just sing, Bitch" in a recording studio and she accepts it. In short, a permanent Nightwish/Floor marriage will be a marriage made in Hell, and won't last a CD. Now, I am NOT knocking Floor as an artist in saying this. I am just saying that two strong creative forces coming from different directions will not be conducive to anyone on Nightwish.
Saying that, I DO suspect that Tuomas wants to grasp his inner Svengali, his inner Henry Higgins, and develop a young singer in the mold that he wants to front Nightwish. No young Finnish female singer is going to want to be in the hurricane that is Nighwish for two years worth of development. There are plenty of young, vibrant and malleable singers that would kill for a chance, even if it means being re-trained. Hell, there are a couple of singers on this very board that, if given the chance, would probably have zero problems going to Finland to be developed into being the perfect fit for Nightwish. Now, is it the most optimal? no. However, would you rather have someone that you developed with you for 5-7 CDs? Or, would you rather be an act with no singing cohesion on consecutive records? I would suspect, being that Nightwish is a Multi-million dollar brand for the time being, it is the former.