Hoi,
At this moment Wikipedia "red links" provide no information whatsoever. This is not cool.
In Wikidata we often have labels for the missing (=red link) articles. We can and do provide information from Wikidata in a reasonable way that is informative in the "Reasonator". We also provide additional search information on many Wikipedias.
In the Reasonator we have now implemented "red lines" [1]. They indicate when a label does not exist in the primary language that is in use.
What we are considering is creating a template {{Reasonator}} that will present information based on what is available in Wikidata. Such a template would be a stand in until an article is actually written. What we would provide is information that is presented in the same way as we provide it as this moment in time [2]
This may open up a box of worms; Reasonator is NOT using any caching. There may be lots of other reasons why you might think this proposal is evil. All the evil that is technical has some merit but, you have to consider that the other side of the equation is that we are not "sharing in the sum of all knowledge" even when we have much of the missing requested information available to us.
One saving (technical) grace, Reasonator loads round about as quickly as WIkidata does.
As this is advance warning, I hope that you can help with the issues that will come about. I hope that you will consider the impact this will have on our traffic and measure to what extend it grows our data.
The Reasonator pages will not show up prettily on mobile phones .. so does Wikidata by the way. It does not consider Wikipedia zero. There may be more issues that may require attention. But again, it beats not serving the information that we have to those that are requesting it. Thanks, GerardM
[1] http://ultimategerardm.blogspot.nl/2014/01/reasonator-is-red-lining-your-dat... [2] http://tools.wmflabs.org/reasonator/test/?lang=oc&q=35610