The next batch of promised Downloadable content for Splatoon appears to be underway and announced. The next stage we will be seeing arrive in Splatoon is Kelp Dome, from the picture you can see above Kelp Dome is a stage we saw in the single player side of the game that I was surprised to discover was not available in the multiplayer from the start.
Kelp Dome is expected to arrive later today in North America, and should be around tomorrow morning in Europe.
Kelp Dome will push the total stage number in Splatoon up to seven and will provide even more fun for Splatoon players, hey I might even go back to playing, here is a message from Nintendo of Europe:
New stage incoming! Kelp Dome arrives tomorrow morning!