A hidden unknown character,or a future skin?

Hello everybody! today i'd wanted to talk about an secret character what was hidden on the new video "Light and Shadow" what tell us about a new FOUR star guardian skins:Star guardian Xayah,Star guardian Rakan,Star guardian Zoe and Star guardian Neeko.

https://www.youtube.com/watch?v=wkihKQ7Exvo[]

In one moment in the video,you can find this character/skin in 1:20.

I don't know what is this,but i have a feeling what it's an Star guardian Yasuo skin....what do you think about it?