Nightwish is one of my favourite bands. Their last three albums have all been awesome. I think I like the more power metal style Wishmaster the best. Fast double bass drumming, insane solos and catchy choruses. Like Helloween, except with a better looking frontperson.

Anyway, I don't see why anything would change for the new album. Tarja Turunen was not an essential part in songwriting (she actually never did anything) and can be easily replaced. The band doesn't need to find a vocalist that has a background in metal, ie. singing in metal bands. They just need a good female soprano. Tarja wasn't that unique. How many are there in the world? Tens of thousands? So as the songwriting remains the same, I expect the next album to be every bit as strong as Once was.

Also another band I have seen live. I have most their CDs too.