The main functionality for supporting entity translations has been done in, but it would be nice to have a setting in the content entity datasource to only include (or exclude) some languages.
Implement this setting and test it :)
Estimated Value and Story Points
This issue was identified as a Beta Blocker for Drupal 8. We sat down and figured out the value proposition and amount of work (story points) for this issue.
Value and Story points are in the scale of fibonacci. Our minimum is 1, our maximum is 21. The higher, the more value or work a certain issue has.
Value : 5
Story Points: 5