From the Wikidata weekly newsletter, I was led to the VIAF blog
post[1] which talks about how VIAF is going to re-orientate their linking from English Wikipedia to Wikidata. This should have a positive effect for the Wikisources in general, and non-English WSes especially, in making more overt the authors that you have in your wikis.
We should also be aware of the issue that (more?) people will arrive at our pages directly via WD.
[http://outgoing.typepad.com/outgoing/2015/03/moving-to-wikidata.html]
Regards, Andrew PS. Some of the more WD-aligned personnel will presumably already know this.