New chapter theory, yui is the next killer
My theory:
This is yui as a killer. In the Archiv cutcene we see a alternative timeline where yui threw a old women from a cliff and she instantly begans to freeze. The new Twitter profile is a women who looks a bit like yui and also has the colors as background that where used in the oni/yui trailer.
Also in the newest tweet there is a women in clothes which have the "same" colors then ice
Comments
Isn't Yui Japanese? It seems that the tweets and whatnot are hinting that whoever this person might be is likely Korean.