Well, some of these suggestions aren't here for the reasons of adding more consistency but I would lobe to see them. Textures aren't mine.

• Dirt, Netherrack, Basalt, Glass Slab and Stairs

• Dirty Cobblestone - it could generate naturally between dirt and stone. Should like nice in some buildings.
  

• Carved Melon
  

• Rope - is climbable - placement works like in chains - needs some block to hang from it.
  

• Fence doors
  

• Concrete layers
  

• Doors with a window
  

• Carpeted stairs
  

• Quarter slab
  

• Quarter stairs
  

• Flint Block
  

• Planks variants
  

• More flower pots
  

• Soul Glass
  

• Furnaces from all stones
  

• Wooden tools created from Crimson and Warped Wood.
  

• Stone tools crafted from Granite, Diorite, Andesite, Sandstone, Red Sandstone, Blackstone, Basalt.
  

• Bamboo blocks and items... bamboo is so useless in vanilla :(
  

• Wooden Bucket

• Gold Bar

• Gold and Redstone Lantern

• Tiles/Paths
  
  
  

The extra furnaces would be cool

Closing this as it's been open for over a year now, and nearly everything we plan on adding from this post has either been implemented, or is tracked on our future content planning boards.

Thank you for the suggestions! We will probably note some of these for later. Feel free to share more suggestions

I really like the idea of fence-style doors

Revisiting this -

• Tiles will be a part of 0.4, and are just a new building variation coming to all block sets. "Cut" has been split into Cut and Tiles
• Carved Melons are probably going to happen sometime after 0.4
• Flint, Gunpowder, and Charcoal blocks are planned
• Soul Glass will probably happen at some point
• Dirty, Snowy, and Sandy versions of blocks will likely be an addon we make once our addon system is implemented
• We may look into some of the wood-based suggestions with a wood addon, since most of the Materials covered by C+ are stones or other inorganic substances.
  Everything not mentioned, but in the list, will likely not happen within the next few updates, but could happen sometime later down the line.

Hi, just wanted you to know I updated this list a few times, also may I ask if some of these blocks were accepted?

We will probably be adding some of these in the future, yes. But this will be post 0.3 or even post 1.0.0