Reply to CDJ 2000 Nexus with DJM 700 with new 2.6 Traktor - Soundcard Question

I was wondering, for CDJ 2000 Nexus and persay DJM 700 that I had my eye on, would I need 4 channel output soundcard to hear decks on PFL? Or CDJ would work as a soundcard? This kinda buggs me, because if I'm not sure, then I would need to make another half long drive to shop to buy Soundcard, why not do it in one go, eh?

*EDIT*

I read in traktor website that its fully supported now the cdj 2000 nexus, who had experience with it? because i couldnt find nothing on youtube the 2.6 with cdj 2000 nexus