I have only heard Bill play one blues song but I suspect he must have cut his teeth with Cream and other English bands that were blues inspired. Jazz is close to blues so you'd think there'd be some overlap even with that. So I'm wondering if Bill would do some blues songs? Maybe he has nothing to say that is particularly bluesy? Maybe he doesn't like the genre? Maybe he hates those over rated blues musicians back then and still does today? So I don't know if there will be something bluesy coming out as there were experiments with country music on Noise Candy. With Noise Candy there was that slide guitar sound Bill got that was part of the ZOOM FX rack, and maybe Bill will find a blues guitar sound that will inspire him.
On the previous guitar thread, one thing I find curious is that there are no pictures of any 12 string guitars. If I think of BBD's "Lovers Are Mortal" or "Islands of the Dead" I can swear I hear a 12 string guitar. Maybe not -- maybe it was just overlapping guitar tracks.
Lastly, bands like Led Zeppelin, Black Sabbath and Jethro Tull started out as blues bands but changed course. Some great guitarist began with the blues and then, as they became more mature, they also became experimental. I think of Jimmy Page starting with blues and then got into rock, folk, Middle Eastern music, etc. But Jimmy never really left his blues roots. I think Bill has bluesy roots too, so maybe he'll get into the blues.