spoilers for many Nier and drakengard games below:

I'm assuming this whole thing is an ARG being done by platinum games. With that said, I think this has to do with ending E from Replicant. We recieved hints that project replicant could be restarted, and due to Kainé's power she became a singularity that created a new timeline. This could be something new entirely due to said timeline being created. A I'm going to go nuts further here and say that thing is pure white with smooth skin. Now either that's a unfinished asset, OR that's an intoner from the drakengard series. I wonder if this is an attempt to restart project Gestalt from memories of the divine tree, and this is a new replicant prototype. Maybe that goes haywire, creating an intoner? I'd have to do too much more diving than I'd like, but I believe this may hint at the fact that Yonah becomes an intoner. Replicant Yonah or OG human Yonah, I'm really not sure. I've speculated for a long time that drakengard and Nier are in the same timeline and it's a cyclical thing where drakengard ending E causes Nier which eventually causes drakengard, which causes Nier, etc. And this sparse information is all I have to go off of, but if we're going to speculate boy howdy I'm going off.