Urian Velos Velioss Coincidence? I don't think so Miguel pretty much said at the start of EC already that Arkhona is going to be THE gamechanger for the ENTIRE galaxy. Perhaps back on the scale of Horus Heresy even.
The story leaves us with the tantilizing question of what exactly lies deep within Arkhona. We can take the literal side of 'look deeper' as in more underground, but perhaps it's in theme with most Eldar (HERESY) nonsense and it is on more of a spiritual/ethereal scale. EDIT: I'm going to make a new thread for the ideas floating around in my head. It'll start with this post.
I believe personally it doesn't even go as far as to what befalls Arkhona, rather what already has befallen the Eldar which not all want to believe just now. Slaanesh. The girl did not understand the concept just yet of it, yet. (Also as McNeill explained during livestream) and it is just short after the Fall of the Eldar of how it sounds. Therefor, I assume she saw Slaanesh or Slaanesh-Marines. On the other hand of course could be some weirdo chaos-eldar-seer which was her mother. *shrug*
pff..I totally forgot to send in my entry to the competition, was busy with other stuff. it was an epic story about an impossible love between a jaded spacemarine and a curious ork. bit like romeo and juliet meets the grim darkness of 40k. They met on the battlefield and the spacemarine instantly fel for the ork's eyes, how they would glow in the light of gunfire and explosions, they would sneak from their posts and meet up in noman's land, but ofcourse both their factions would find out about this. Even wrote some westside-story like songs, had this whole musical in mind. maybe I'll just post it in here sometime.
I bet what she saw was one of Slaanesh's lewd paintings, that can be seen from orbit. He/she is such a prankster. I bet it was a crude phalus with a phrase under that read, "you're next". Man do people hate the Eldar over at GW and BL.
Just had the time to read it, and I must say... Im hyped! I wonder what terror made the Xenos Witch cry, for when our time is coming, we must fight and destroy what ails her heart for our own good. This masterful teasing of a story did not shed many lights and can be anything at this point, but I have a feeling it is gonna be a good fight, worthy of a saga.