In the Europeana Art History Challenge (https://www.wikidata.org/wiki/Wikidata:Europeana_Art_History_Challenge) we're using content translation. Users find an article to translate and do so. Turns out that content translation isn't adding the sitelink to the Wikidata item so the translation goes unnoticed. We already had a case where two users translated the same article without knowing because the sitelink wasn't added. Especially for new users it's almost impossible to explain that after the translation you have to manually add the link again.
What should happen:
- User goes through the content translation interface
- User translates an article from source language to destination language
- User saves the page
- Process starts to add the new item to the existing wikidata item (or a new one)
Probably the process that adds the missing link in the background could be similar to the move implementation we currently have
Edit by @Amire80, 2017-01-23:
I discussed this with @daniel and @Lydia_Pintscher at Dev Summit 2017, and we more or less agree that the addition of the sitelink should be moved from the frontend to the backend, although it has a few challenges.