Interesting comments from all. David definitely seems to have reached some kind of hiatus in his music and methods (in contrast to Steve, who seems quite energised).
He was talking about using improvisation as a way of generating material back in the 80s and I guess the Samadhi decade saw him finally work that way - either partly on his own (Blemish) or relying almost entirely on others for the music (Manafon). I still think he's achieved amazing things with those albums - different to his classic era for sure, but interesting and beautiful too. But where does he go now?
"Do you know me now?" showed that he can still work the old view - songs from chords - with the same magic still there. I would guess that Jan Bang filled out the song partly because David's studio was being closed down, partly because - as Kitaj says - he has internalised David's sound world.
But he seems to be keener to continue with the sound universe of Manafon / DITW etc and 'There Is A Light..." seemed to me to be an attempt to move that way compositionally - constructing things from samples, yes, but not improvising. I'm not sure how far that can take him. He always seemed to have an intuitive, quick working core - even if all the rest was much more painstaking.
I don't know where he'll go next - if anywhere - and am not sure I have any preference. Perhaps he really could do with working more collaboratively with others, but can he do that in a different way to the past? Up to now, he either composes the song and works with others to fill it out or has others provide music that he can construct songs into. Is there another way?
I've been enjoying Radiohead's new album a lot, and am struck by how much it benefits from group strengths - Jonny Greenwood's film composing work has brought amazing string arrangements to complement Thom Yorke's songs. That was the role that Sakamoto played with Sylvian and maybe he needs something akin to that to move forward again?