Some other blocks-constructs that would be nice... These may have been mentioned but thought I'd bump the subject for @red51...
The first block type is one that I think is very much needed. An "Inverse Ramp Half Corner". Basically the Inverse of the existing "Ramp Half Corner". Not sure what the best name would be, but the shape that would fill the hole shown here:
This block would allow for finishing off roofs meeting at 45 degrees properly.
The second one may also have been mentioned but.... Adding the "Triangular Planks" that are available in the "Planks and Beams" plugin to the sawbench, but also add one that is a right triangle as well as the isosceles triangle to be able to fill areas like the one below:
Lastly.... A "Two Tone Block" Basically, a block that can have two different textures on each half (ramp). Another way to be able to fill the same area as above.
The First one here would definitely be the one most helpful!