Source?
Just my predicton 
Ahh, drat. Thought maybe you knew something I didn’t 
pioneer Germany has denied this presumption
You would think a DDJ TX would be on the cards, since there was previously both softwares catered for.
NI might see they are losing the controller high ground with Pioneer’s recent offering, and perhaps just stay modular with Z2, etc.
They could pair up with Pioneer for a nice controller to release Traktor 3.
A Traktor 3 with unlimited decks, unlimited samples and VSTs would be ideal
They just released Komplete 9 after a price reduction of Komplete 8. The other thing they reduced the price for is the Traktor S4.
if the ddj sx is out of your price range I’m surprised you’re considering an ns7