Dear all, there is an important Request for Comments on Wikidata. https://www.wikidata.org/wiki/Wikidata:Requests_for_comment/References_and_s...
For those of you who don't know it yet, there is a specific Wikidata Books task force http://www.wikidata.org/wiki/Wikidata:Books_task_force
It's really important that the Wikisource community starts engaging Wikidata issues, especially because it will soon be needed a decision regarding the relation between Wikidata and Wikisource.
We need to discuss "edition data" on Wikidata, as they represent the 99% of metadata that are on Wikisource (and obviously Commons).
Aubrey