Hey :)
There has been a lot of talk about Wikidata in this thread. We are indeed going to work on a solution. Lucie will be working on this project as part of her bachelor thesis starting in August. It is called article placeholder. You can read more and give input at https://www.wikidata.org/wiki/Wikidata:Article_placeholder_input and https://phabricator.wikimedia.org/T99895
Cheers Lydia