Along with the stand-alone novel set in the First Law world, he's (Joe) also got a brand-new book just recently released . Half a King (book one of the Shattered Sea series). The word YA is often bandied about when talking about it, but I'm pretty sure that's mostly because of it being a young protag in a coming of age story. I'm sure it's just as full of dark and grim and tropes being turned on their ear as his other stuff is--with perhaps less f-bombs. But let's face it: slapping the YA label on fantasy means more sales in this day and age.
Reminds me I should be reading it right now!