On Tue, Oct 4, 2016 at 2:01 AM, Joseph Seddon <jseddon@wikimedia.org> wrote:

currently there is no clear indication within Wikipedia articles
and as far as I can tell within Wikidata as to both what *datum* and what
*version* any particular coordinate relates to, there is no guarantee that
any particular coordinate would be any more correct than it was before.

This definitely should be fixed on the wikidata side. Whether article editors are savvy enough to know and enter this data is another question; but at least the geotemplates should have fields for it and you can assume that if those are empty some {person/bot hybrid} that understands that nuance should fill them in.