While most esports belongs to one of a few genres — FPS, MOBA, or RTS — Splatoon 2 belongs to its own sub-genre of FPS games. Nintendo has dubbed it an "Action FPS" but it's more like a third person shooter with some unique mechanics. This unique idea has now attracted the interest of the Nippon Professional Baseball (NPB) league, Japan's professional baseball league, according to The Esports Observer.
This means that the clubs of the NPB will each field a Splatoon 2 team in the newly created league. As a westerner Splatoon may not seem like the obvious choice for an esports league but the game is incredibly popular in Japan. The game has sold over 2 million copies in the country and the country recently won the world championships held at E3.
While no official launch date has been set for the league the baseball clubs will present their rosters in March next year, meaning that a summer 2019 launch seems probable.
According to TES' translation of the official website, there will be no monetary prizes handed out to the winner(s). The players of the league will instead be compensated for their participation.
Japan has always been disconnected from the rest of the world when it comes to esports, with few exceptions. Creating a league in Splatoon 2 will — unfortunately — not help to bridge that gap as the game isn't as popular in the rest of the world.