Could Nintendo refer to something that has to do with Splatoon this year?

Although the series producer Hisashi Nogami was quite relentless SPlatoon 3 Since we are not in development, something seems to be going on with the series. In a new Tweet explains the official Japan SPlatoon wished the fans a happy year 2020. However, the letters SOS can be seen in the water.

The Weird Origin of Splatoon (and Producer Hisashi Nogami)
The Morse Code for Save Our Souls, which was originally used for maritime matters, could indicate something here. Of course, it could not be anything. And even if the developer team has a joke, it is hard to see that it is a continuation of is SPlatoon. An extension to SPlatoon 2 maybe a full-fledged continuation?

It would be interesting to see what the project is. After all, important content updates and events have stopped SPlatoon 2 and it only receives weapons and equilibrium changes. The next patch, version 5.1.0, will appear next week and optimize weapons like the splattershot and the Luna Blaster. We will hopefully see if this tweet has a meaning in the coming months. Marked: Nintendo, Nintendo Switch, Splatoon, Splatoon 2, Splatoon 3