According to 13AM Games, the PlayStation 4 and Nintendo Switch port for Runbow has been delayed. According to the PR Statement, as posted by Nintendo Life, the delay is to "further optimize the game’s performance."
Sorry for the delay, everyone. #Runbow for #Nintendoswitch and #PS4 is delayed, but rest assured the wait will be worth it! We just wanna make sure to polish it up before we get it in your hands!— 13AM Games no longer @ PAX EAST booth 21019 (@13amgames) April 20, 2018
Thanks for your patience! 🙇🏽♂️🙇🏽♂️🙇🏽♂️ https://t.co/uttx9lT9gF
This may be the last port for Runbow, as it's already launched on Wii U in 2015, then ported to Steam, 3DS, and Xbox One last year. 13AM Games also announced their next game, Double Cross, coming later this year.