No release date, platform or region has been announced yet. Source: Official announcement
MAPPA has announced a range of activities and releases for its "MAPPA EXPO 15th Anniversary". A free audio guide featuring prominent voice actors such as Kenjiro Tsuda, Reina Ueda, Yui Ishikawa, and Asami Seto has been unveiled. Additionally, a special TV commercial narrated by Kenjiro Tsuda was introduced.
The event will also debut commemorative items utilizing the MAPPA 15th anniversary logo. These goods will be available for purchase at the venue. The announcement was made on September 9, revealing the various offerings planned for the expo.
Announced by MAPPA
Official source: MAPPA