At Punkt this year they are replaying a film of David's performance of Plight & Premonition from the 2011 festival:
"Punkt 2015 (3-5 September): Punkt Film is a new festival feature: a continuous film and video programme in two of Kristiansand Kino's halls on 4 & 5 September. Parts of the material will be shown exclusively at Punkt - it will never be released elsewhere - for instance David Sylvian's 'Plight & Premonition' concert from Punkt 2011 featuring Philip Jeck, Arve Henriksen, Eivind Aarset, Erik Honoré and Jan Bang'
I believe this film was shown last year also and I was holding out a hope that it might see some sort of release. I expect it is a fixed camera position so maybe not dynamic enough for commercial publication, but a valuable record of a truly one-off performance. Perhaps the audio recording might be released one day...
I thoroughly enjoyed the two Punkt festivals I attended, I'm sorry to miss it this year with so many great contributors - Honoré, Bang, Henriksen, Endresen, fennesz, Fujikura..