Pressing on? Alright - the above sillhouette belongs to Diancie, a rock/fairy type crowned with pink jewels. The Pokemon site explains that Diancie can "create diamonds out of thin air by compressing the carbon in the atmosphere with its hands. It uses these jewels in battle to attack enemies and protect itself."
The Pokemon site also notes that we'll have to "stay tuned" for information on when and how we'll be able to properly capture Diancie, so we'll just have to let it enjoy its final moments of freedom. For now. You can check out Diancie's first turns in battle in the trailer after the break!
Oh, and if you're the sort that peeks under the wrapping paper of every present the night before an event, a hacker provided a non-silhouetted glimpse of Diancie and three other possible Pokemon last November.