2013 minifigs leak onto eBay
The latest to catch my eye are a couple of Galaxy Squad ones, which you can see better pictures of at Hoth Bricks.
The insect-y chap on the right looks just like those in the cartoon picture from the club magazine.
I'm not going to cast assertions as to how the seller obtained them: I will let you make your own mind up. As far as we know these sets are not even due for release in January, unless they are not destined for regular retailers which would explain why none are listing them yet (and why they are not in the Jan-May 2013 retailers' catalogue).
Nevertheless they look very cool and I look forward to being able to buy them legitimately.