I wrote a small piece on this a couple of day ago and it seems like the Denon DN-SC2000 is tailor made for Traktor Pro. This video is form Denon and it runs quickly through some main features. The buttons really look nice and large plus the rotary buttons looks like they are just as they should be. It is announced in the video that the unit will ship in the fourth quarter of this year.
Check out this video on how it all works or read more on my blog post on this wondefull controller!
Click here for more info