Here is an overview of the studio, via Square Enix:
The Visual Works Division has created pre-rendered movies for many of Square Enix’s game titles. The Image Arts Division, whose core staff includes members from the team that created the movie Kingsglaive: Final Fantasy XV, has meanwhile engaged in research and development into high-end visual expression with a focus on real-time graphics.
By fusing the technologies and attributes of the two divisions into the Square Enix Image Studio Division, Square Enix aims to become faster at its research and development efforts into next-generation visual expression and at incorporating the results of those efforts into actual content. It thereby hopes to provide its customers with an even higher quality of experience.
Visit the Square Enix Image Studio Division website here.