A new interview with the Japanese online magazine Muse On Muse was published today, and that reminds me they published an interview with Trevor last year as well which some might not have seen previously. Judging from what I understand of the current interview it appears that work continues on the new music, though Trevor's not quite ready to commit to a completion date.
Although of course it loses something in translation for the rest of us, here are the links if you are so inclined to read these exchanges.
http://www.museonmuse.jp/?p=8331
http://www.museonmuse.jp/?p=8815