Im reading the old bitcointalk forums he discussed his idea of QBC (https://bitcointalk.org/index.php?topic=112676.0).
And he provided code for his ideas.
So even if the Project is of huge scope and will take time and effort to implement, we should not forget, that CfB has been on it for a long time. Therefor I'm almost certain, that there exist a lot more than "just" the vision. There must be code which must be getting tested and implemented right now.
Tl;dr: Speculation: Implemenation and Codework from Q could be a lot more close than written on the website.
Hyped for the detailed Roadmap!