It seems that White Fang and the folks at Eurobricks have been treated to an early release case of the Series 4 Collectible Minifigures! A very detailed review showing parts breakdowns and case counts. A must see while we await the broader Series 4 rollout.
It has also been discussed on Eurobricks that the dot code system appears to be in play again. Once the code has been cracked and reference sheets surface, we will be sure to post them.
You can see more on Eurobricks.