I have to say Nightwish with Floor have put out two top tier live albums with Showtime, Storytime and Decades (haven't heard enough from Vehicle of the Spirit to comment on that one). The band's never sounded better live IMO and I typically just listen to those live albums because I usually prefer how Floor sings the older material live over how Tarja or Anette sang them.
At the same time, Tuomas does seem to have passed his peak in songwriting for the band and doesn't seem quite confident in how to make the most of Floor's range and voice in new material.
I will say though that "Noise" has me more excited than I was when I first heard "Elan" five years ago. It's not Floor's best work, but all things considered, I would say it's generally a better demonstration of what Floor is capable of a singer. She's belting out a lot more, using more of her range and hits several solid high notes at the end of each chorus. As the first singles always seems to be the most ordinary song on a Nightwish album, hopefully this bodes well for the rest of the album.
Also I'll throw my support onto After Forever's last album being top tier stuff. Almost certainly Floor's best work ever and I'd love to hear her do more original work in other bands too.