An innocuous checkbox will allow you to restrict who can see your private News.
is now also available for news. Note that this feature only becomes available if you have a newly created permission. The invaluable help on this feature puts it this way:
"We've intentionally limited this permission to a small group of people to avoid the overuse of private news. We strongly believe that ahead should provide a platform for open and transparent communication. 🙌"
Our support should be contacted should you wish to use this new feature for your Editors.
Please also consult the help for additional info on how to use the feature and how it interacts with other settings around publishing News.