Wasn't there some physical limit for track durations of 22 minutes on 12" vinyl records? A couple of elseq tracks wouldnt even fit on 12" vinyl, unless edited. I think I'm going with the quadrange theory already mentioned. But I wouldn't be surprised if this is actually meant as their 12th album. And they've basically freed themselves from the idea of releasing physical.
Still confused about the lack of attention (marketing) from Warp though. But I'm guessing this is very much booth/brown taking control of how their work is released. Too bad about the (current) lack of marketing, as I believe the artwork could do well on poster format. With the black blobs morphing into letters that spell autechre, or something. I always feel the artwork for ae albums works better on a bigger format.