In case you missed this, the Wikimedia Services team is soliciting feedback on the design of a public API for Wikidata, considering MQL and SPARQL among possible options [1] If you are interested in contributing to this discussion, please chime in on the Phabricator thread or help spread the word among interested parties [2].
Dario
[1] https://phabricator.wikimedia.org/T85181 [2] https://twitter.com/ReaderMeter/status/552919940387196928
wiki-research-l@lists.wikimedia.org