I hope the next Burzum record is on acoustic guitar. That would be my favorite thing of all-time. Not folky like that Agalloch crap but metallic stuff like Impaled Northern Moonforest, except good, and of course serious.
edit: A lot of Black Metal is pretty soft already. Particularly Burzum. Very slow and subdued, though dark and harsh. It depresses me that these bands like Agalloch and Alcest soften up black metal in all the wrong ways. You don't need to pussify the kind of instrumentation, you just need to play the same kind of riffs and structures in a slightly different way. It could make for a pretty awesome sound. The acoustic guitar is so typecasted it's disgusting. You don't have to play pathetic Dave Mathews singer-songwriter material on an acoustic guitar, it can do so many more things and it virtually never gets a chance to in modern music.