As this is co-founded by Google this may change the way Google works as well. Its not unlikely that wikidata will answer Google search queries.
This will be a major change to how wiki functionality on the internet works.

Its interesting that they are working on this, as I need similar functionality.
I wonder how this will impact Vaultwiki.

http://techcrunch.com/2012/03/30/wik...en-and-others/