Upcoming Champion Easter Egg!

I was exploring some splashes to see if there would be any easter eggs on upcoming characters or skins. There is one that caught my eye in the Pool Party Ziggs splash. Now the one I am mentioning is not the obvious ones like Pool Party Garen, Darius, Katarina, Ahri, Riven, Diana, Xin Zhao, and others, I am talking about the one on the right of Katarina. See that white figure with a white hat? He is putting some stick into the pool and has a black face with red eyes. NOT Darius, the guy in between the both of them. Who is that?

After a bit of thinking I have a few suspects. Nocturne, is one of them. Nocturne, as you probably know, has a black face. Also, as far as I can see, he has no legs, another physical attribute of Nocturne. Now, here are the reasons why I think this is not right. First of all, he is a living nightmare, why would he be out in the day time and why would he be in such a festive place? So, in conclusion, this might be a new character or maybe a new skin that will be coming out. some time.

I would like to know what you guys think about my discovery. Thanks.