There have also been further modifications in the RDF export, e.g., in relation to how certain values are encoded (e.g., geo coordinates use WKT in Wikidata, but used a custom type with planet in our initial RDF dumps).
If geo-coordinates use WKT in Wikidata (which I can't see anywhere there), does it mean, that the original idea of {latitude, longitude, altitude, precision, globe} format was abandoned?
Oh, and another thing: when I download "wikidata-properties.nt" from WDTK dump files site [1], there is <http://wikidata.org/ontology#> used everywhere. So... is the WB ontology somehow translated to WD ontology?