From a recent Metalsucks interview with Michael Amott:
MS: "So to come back to the North American tour… By the time that rolls around, do you think you’ll be incorporating a lot of the new material?"
Amott: "Absolutely. This is one album where I would like to play all the songs at some point. I really like all of the songs. We’re playing four new songs already ,even before the album is out. By the time we get to the U.S., we’ll have played twenty-five shows across the summer. We should be up and running and playing a lot of new stuff by then. And we rehearsed a lot of older songs that we haven’t played in awhile.
We’ve been playing the same set list forever. We’re getting bored of it. I can play it in my sleep. So it’s time to make some changes."