+Stud Brickman Studios told me there was some leaked information about Minifigures Series 13, which will be released in January 2015. So I opened google and started searching. And he was right, there is some leaked information. In fact, there are two different sources, but I dont know which one is right. So here are both...
The first one has a list of 16 upcoming minifigures:
Penguin Suit Guy
The other one shows these Toys R Us promotional artworks featuring some unknown minifigures.
Like you've maybe already noticed, the images contain a director minifigure, which is not in the revealed minifigures list. So one of them have to be wrong. We'll see soon...