There is a new video documentary about the making of the new album, Humanity Hour 1 on the official website. One thing I learned while watching the video was that Eric Bazilian and Martin Frederiksen co-wrote at least 2 of the songs on the new album.
Humanity was written by Klaus Meine, Desmond Child, Eric Bazilian, and Martin Frederiksen. We Were Born To Fly was written by Matthias Jabs, Eric Bazilian, and Martin Frederiksen
Other than Desmond Child who is the producer, I didn’t know they were using outside song writers for this album. Eric also helped write Dreamers. Martin has helped write 10 Light Years Away and Yellow Butterfly. So maybe some of these songs were left over from previous sessions.