While Nike's Blazer hasn't yet had a Flyknit upgrade, the model is being modernized with this new version known as the Blazer Advanced. The shoe leaves its laces behind in favor of a slanted zipper on the upper.
Elsewhere this Nike Blazer Advanced has a soft black nubuck on its upper and a reflective piece decorating the heel.
Nike's put zippers on Blazers a number of times before, but usually they come accompanying laces rather than replacing them.
This Nike Blazer Advanced style is already available in Japan and Europe, but hasn't released in the U.S. just yet. So far, only the black/white colorway here has surfaced.