When Guy states new material, I think he is referring to new recordings, not newly written, as he says Mark writes all the time, so it makes sense he can record a song he has been working on for a long time, Rudiger the perfect example. The irony with Two Skinny Kids is that at one time, it was the "New material" That is one song I would love to be released, it doesn't have to be on the main new album, could be on a single B-Side release, Mark has done that several times.