This year’s combined second and third issue of Akita Shoten’s Weekly Shōnen Champion magazine has announced that Keisuke Itagaki and Yukinao Yamauchi’s Baki Gaiden – Scarface manga will have a special chapter that will debut on December 27, 2018. The one-shot will be set after Kaoru’s fight with Spec.
The manga has been on hiatus since May 2018.
Source: ANN