First of all, thanks for this topic.
As interesting it is to read all these different wishes and hopes for their next album, I am not sure I can describe what I would like to listen to on their next record. I listend all their back catalogue yesterday to figure out what element was maybe still missing or what path they still didn´t walk. Well, I don´t have an answer.
Last time I saw them on stage was in Germany at Rock am Ring, they played Closure with this weird, heavy, jamming ending, which was incredible. That kind of stuff would be great. To have a more jammier (?) style, I don´t know how to explain. And a more faster type of sound would be great to hear. No blast parts of course, but some 5-6 minute piece with no (or minimal) mellow interruptions (a heavier kind of "Bleak" maybe).
In general, there are a lot of ideas, and I am confident that their next opus will be great as well. Strings, banjos, I don´t care. I know they will transform all of these into something which makes you say "WOW" in the end.
One last thing which I definately don´t want to hear are electronics in their sound. As much as I love them with certain bands, this would ruin all of this kind of atmosphere they build with their music.