The film is being directed by Hiroyuki Seshita as the general director while Hiroaki Ando is serving as the main director, working off of the script by Hiroshi Seko.
A promo was released for the film back at the end of May that you can see below.
With the second film of the trilogy with Ajin: Demi-Human – Collision out two months ago in theaters, events are now starting to focus on the third film in the series.