I loved reading all of these interpretations of the Wolfpack and see where many of these interps naturally overlap just as the great fictional characters of folklore experience different retcons and reinterpretations. As I sought to remember what my own WP interpretation was as a child, I realized that I had an evolving kind of view of their role in Lego Castle.
My earliest impression was that of an ally to the forestmen. They were the "new forestmen" in the sense they represented anti-establishment. However, the detail of their costumes, especially the shields, indicate a more formal training or background. Thus, this evolved my notion that the WP, while outcasts like the FM, operated more like an Assassin's Creed. Yes, because they were so few in number indicates that members are of elite training. Wolfpacks themselves (the animal packs now) are notorious for traveling in small groups, which is mirrored by the low number of WP minifigs produced. Plus, wolves are fierce yet loyal, further characterizing the ambiance of an elite group of outlaws that still operate under a specific code of conduct.
They are as exciting as they are mysterious, and for good reason. If they do indeed have a code of honor but are elitely trained, then the code itself would be a secret known only to the few members, and thus foreign to outsiders...including us!
Thus, theoretically we can only
speculate as true their ultimate true nature, and our interpretations operate much like modern historians in attempting to piece together their past with what little information we have.