I watched the new trailer and I happened to stop it at the part right when the dog appears and on the right side through the doorway there seems to be a green light. I don't know what it is there for so just decided to post it to see what you guys think.

Also the dog is in a new location. This could mean that it moves or there are few of them in the map. If it moves I think it could be the new box somehow like NGTzombies has suggested.

What are your guys ideas?

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