Actually .. My money says that Google isn't going to be doing anything, that's really any different, from what they've already been doing.
Danny Sullivan did a pretty fair job of pointing this out lately:
If all this isn’t really new, why’s it getting played up so big with the Wall Street Journal, as well as Mashable last month? Mashable even quoted Google talking about its “knowledge graph” for the first time that I’ve seen.
My take is that Google’s pushing these technologies for some good PR, and they are in turn being blown up out of proportion to what will really happen.
Google’s been under intense pressure in some quarters since rolling out Search Plus Your World, pressure that its results aren’t as good as in the past. It’s helpful to counter that type of bad PR with interviews talking up forward-looking technologies. Heck, it’s right out of Bing’s playbook.