Foreshadowing of Scavenger & Dragon Relationships?

(Minor spoilers for the first three books?)

I'm almost done with arc 1 (half-way through The Dark Secret) and so far, in every book I've read, the dragons have saved a scavenger or two from dying. Clay drops a scavenger at the top of a mountain so it could escape Scarlet's arena, Tsunami flies two scavengers away from drowning, Glory sets two scavengers free from being held in the Ice Kingdom palace. I don't know if anyone else has mentioned this before, but this feels like very obvious foreshadowing for scavenger & dragon relationships in the future. I do know Sky has a scavenger friend named Wren, which could be just the start of scavengers and dragons interacting again. I think most of the appeal of Wings of Fire is that the protagonists are dragons and humans aren't very prevalent in the story, but with this foreshadowing, I'm growing to accept this is most likely going to be a plotline, and maybe I'll like it! What do you think about this? Do you think the foreshadowing is just a coincidence? What would you think of an arc where dragons and scavengers start to interact and even get along? I'm actually a big fan of the idea of Sky & Wren leading peace negotiations between dragons and scavengers, I'd love to see more of their dynamic.