normative references for microformats 2

There has been some talk about using microformats as an input to some of
the work in this group (AS2 examples, social API, possible W3C Notes)

I have not been able to find a stable normative reference for the vocab
that is machine readable in say the same way as:

http://www.w3.org/1999/xhtml/vocab

I think what would make it more attractive would be to have it eg

- Under W3C namespace
- Perhaps at https://w3id.org/

It would be great to have some idea of a timeline on this too, as I think
it may impact deliverables.