Although details are currently slim, a leaked image provided by wavegod_thelegend shows what looks to be the toe box of the popular Air Jordan 4 wearing a patchwork denim that could be created from the aforementioned stitching style that's generally used on worn-down materials to make it "new" again. The remainder of the shoe remains unseen, but it's likely that the theme will carry onto the rest of the upper.
As of now, Jordan Brand hasn't confirmed that a sashiko-styled Air Jordan 4 is releasing but stay tuned to Sole Collector for new developments as they become available.
UPDATE (11/25): As the release date gets closer, we now have an official look at the "Sashiko" Air Jordan 4 dropping at select retailers outside of North America on Dec. 5.
Air Jordan 4 Retro SE "Sashiko"
Release Date: 12/05/2020
Color: Deep Ocean/Sail-Cement Grey-Fire Red
Style #: CW0898-400