Yes! We need many many more gore/blood/bones/sever heads etc. Physiological horror blocks like bloody foot prints and hand prints. Every block shape should have damage/destruction types, trim types, etc. I'm neutral on new zombies, more would always been nice. As well more dead body types. Can we get a whole corpse without missing limbs, (no zombie) corpses are rather limited as well. And while we're add it, some dude (I forgot who) made a bunch of nice looking doors in a package. They should add that. It's a bit absurd that every single door is busted, gone, or bored up.
That said, 7 Days has the most block shapes I have ever seen in a voxel building game. Kudos to them! But we are missing quite a few for those of us that like adding a lot of little details.