Please guys, you should note that this is a theory, so I could be very wrong. But that reflection Walle is looking at looks very um evil. A theory I thought of is what if Walle was actually evil in the past, hence the name Dark Revelations. This completely took me off guard, but it would make sense why Walle seems to be suffering from PTSD. But I could be wrong, maybe it is just a reflection of Nemesis, and Walle is remembering the good old days. Anyways, I don't know whether I'm right or not. We'll see in 10 days whether I'm correct or not.
@GaBamaBoy for the poster