Ok, so in this case they will definitely request an ARC at some point because without it they would never allow you back into Canada again. A deportation order is the most severe removal order they have. Still, you should not have a probleem getting approved for an ARC since your process is moving along fine up until now. i can't tell you when they will request the ARC, just that they will, so all you can do it wait until you hear from them or maybe shoot them an email to ask them but you have no guarantee that they will answer that. I would request notes in your case though, it may give you an idea of what is going on.