After some delay, EASA have published NPA 2016-09, Requirements for Air Traffic Services.
This is the start of the process to bring AFIS into regulation.
The NPA is split into 2 parts, with the proposed technical content contained within NPA 2016-09(B); please see the following links:
NPA 2016-09 (A)
https://www.easa.europa.eu/document-library/notices-of-proposed-amendment/npa-2016-09a
NPA 2016-09 (B)
https://www.easa.europa.eu/document-library/notices-of-proposed-amendment/npa-2016-09b
Responses need to be submitted by the 16th January 2017.