[quote=@Ashifili]
[@GrafRoy Zeppeli]
Question: Would Arata be assigned to a dorm prior to arriving? Or is he going to receive that information futurely?

And would he have been told about the Magus Games and the Erasers? Dude's been out of the loop for a couple of centuries and all.
[/quote]

You'll be assigned a dorm in the near future. Perhaps with Adrian the mothman since we haven't seen Avanhelsing for a while. 

And yes, he would've been told of all of this.