I got an idea for future blender versions, here it is:
Today you model with a shell, which put the focus on the vertices position and flow. Many tools that you feel you would need can’t exist because of this. What if you could model with volume?
Think of the workflow as the following:
In edit-mode add thousands of particle-like balls by simply spray-draw them, note you don’t need anything beneath it, which makes it easy to make your shapes without even care about the vertices. It would be to draw on a paper. But you would also be able to draw from different views to add volume. Erase and move tools would also be handy. Then you’re done, tab out to object mode and you have a nice mesh that you can convert.
The thing would be that it would be easy to create models and change them. Maybe I could explain a little better, but I hope you get it anyway.