In reply to Paul.

I agree.
Roadmaps can become restrictive or out of date, but a long-term vision gives coherence to the wide range of efforts and adds to the motivation of the developers as well.
I don't agree that post formats should be removed from core, but I readily admit their usefulness has been crippled by the lack of vision and followthrough.
I suppose "mobile" has been a big focus for a while, but I propose that now that WordPress is so big we consider "AUTHORING" as a new focus.
Authoring obviously encompasses the Customizer, post formats and much much more - editor, mathml, notes, annotations, front-end editing for example.