"As a Reader, I want to get a presentational version of a Wikibase item, so I can review its information manually."
Currently the GET /page/{title}/html and GET /page/{title}/with_html endpoints in the Core REST API return an HTML-wrapped JSON object for pages with type wikibase-item, which is neither good for machine-readable format nor for human readable.
It would be interesting to instead return something like the Web interface, maybe with the in-page editing controls left out?