Attack on Titan 2 (teaser site) is currently slated for an early 2018 launch in Japan.
While Attack on Titan 2 didn’t initially have a list of platforms, Koei Tecmo revealed further plans at Tokyo Game Show, lining it up for PlayStation 4, which served as the base platform, as well as PS Vita, Nintendo Switch, and PC.
In addition to the upcoming Attack on Titan 2: Future Coordinates on Nintendo 3DS, a full-on action game sequel is on the way with more content from the anime’s second season.