By looking at Extended Events i found some interesting Events in a category called Query Store. This made me a little curious and I tried to find some more information about how to use them, but I only found two webpages that gives some hints about what it is. It seems like a new feature that will be presented by Connor Cunningham at SQL PASS 2014. From the abstract and by looking at the events you can make som qualified guesses. The Query Store looks like a new feature that will help you to find performance problems in your queries.
To know more about Query Store I have to wait until Connor Cunningham demonstrate the feature today.