Pictures have surfaced of these 998s made of premium horween leather. They form part of the bespoke authors collection with the rumor of a retail price of $399 and limited to 300 pairs of each colour. The following info found on Crooked Tongues says they are set to release some time this month.
New Balance MADE IN USA M998WD HORWEEN LEATHER
Colour: RED
Product Code: M998WD
Release Month: July
New Balance MADE IN USA M998DW HORWEEN LEATHER
Colour: BROWN
Product Code: M998DW
Release Month: July
Source: Sneakernews and Crooked Tongues