splatoonus:

The ink-triguing new Splatoon 2: Octo Expansion DLC will be available tomorrow evening! With the help of Pearl and Marina, guide the amnesiac Agent 8 to the surface, and discover the mystery of the underground test facility across 80 new single-player missions!

Unlock the ability to play as an Octoling in multiplayer matches after you’ve made your way through the expansion, and show those Inklings which cephalopod is top dog!

https://e3.nintendo.com/games/splatoon-2-octo-expansion-switch