It is possible to add sitelinks to draft articles on Wikidata, but they are not functioning properly.
- The link to "Wikidata item" does not appear in the tools sidebar on enwiki.
- No inter-language links appear on the draft article.
(However, an inter-language link to the draft article does appear on the other language versions.)
An example can be seen at https://www.wikidata.org/wiki/Q969904