Hi Jan and Wikidatans,
That sounds about right.
I think the possible number of Wikidata languages (and inter-lingual developments) will emerge as these two projects develop a little further -
RFC: Per-language URLs for multilingual wiki pages -
RFC: make Parser::getTargetLanguage aware of multilingual wikis -
which I just learned yesterday in the #wikimedia-office hour at 2pm PT (on Wednesdays).
CC World University and School, which is like CC Wikipedia with CC MIT OCW in 7 languages and CC Yale OYC (and planning online free best STEM CC OCW accrediting university degrees in ~204 countries' main and official languages) is seeking additionally to develop wiki schools for open teaching and learning in all 7,943+ languages building in CC Wikidata/Wikibase, if possible - as well as for an universal translator. How easy ahead will it be to simply "populate" a list of all 8K languages in Wikidata/Wikibase for various artificial intelligence, machine learning and machine translation developments?
Best,
Scott