Good news! Wikipedia editors have been waiting for a long time for Wikidata changes to be shown in their Wikipedia watchlist and recent changes.
As you may know, two different modes exist for the recent changes page and watchlist.(You can activate theenhanced mode in your preferences, in the "Recent changes" tab, then checking the “Group changes by page in recent changes and watchlist” box.)
Wikidata changes were already displayed in the default watchlist and recent changes page. This way you can see the changes that happened to data on Wikidata that is used in the Wikipedia pages you’re watching.(You might need to uncheck the "hide Wikidata" checkbox on the recent changes or watchlist page to see them.)
So far, this feature was not available inenhanced recent changes and watchlist. Later today (June 29th, 2017), it will be.
If you encounter any problem, feel free to pingLea Lacroix (WMDE) or add a comment onthe Phabricator ticket.
Thanks go toMatěj Suchánek who developed this feature!