Can you give an example of 1 of the datasets your trying to remap with ?  That would help clarify.

Are you a Statistician or Programmer or Both ?

Quick Notes:

JSON-stat format and semantics seems to be easily transferable to JSON-LD (upon a quick inspection from my eyes)

JSON-LD is already used on Data.gov and upcoming on Data.gov.uk and others.

Maybe working with Gregg Kellogg on a transform tool and processor between JSON-stat and JSON-LD ?

 

Perhaps also http://w3c.github.io/csvw/primer/ is interesting or useful for you ?

Finally, OpenRefine 2.8 (download and check it out) has new Wikidata / Metadata features, but we still have more work to do in other areas, here's just one https://github.com/OpenRefine/OpenRefine/issues/1269

-Thad