Here's a preview of the upcoming Air Max BW Spring 2014 pack which will be out sometime in early 2014. the There's the Big Window FB silhouette which comes in a black/persian violet/white sail colorway, which includes an extra large visible air unit in the heel.

Also included is the updated BW Generation II with Nike Hyperfuse and Free technologies, available in black/persian violet/white sail and black/light crimson/white. Finally, there's Gen II model which has been given a fresher, modern update. More pics below.