Viz Media has updated their official twitter page with an announcement that they will be releasing the Splatoon manga series. The manga series will be released later this year. No other details are confirmed so stay tuned for updates.
Announcement: SPLATOON, the manga series inspired by the hit Nintendo game makes it's debut late 2017! Join the Turf War!🦑 pic.twitter.com/kmOGQJaMf7
— VIZ Media (@VIZMedia) April 21, 2017
Source: Viz Media