Were Aurora to reach her potential, I think she could be a real competitor.
However, if Aurora training with Ravi full-time turns out to be true (still nothing like word, though there's been some oddly delayed reporting of coaching stuff this summer, e.g., with Joseph's move to the TCC), I think it's not likely reflective of any inside knowledge about Kaetlyn's thoughts on the future. At this point she's accomplished more than she ever reasonably expected, by her own telling, and (other than the prospect of medaling at 4CC, I guess) there are no new worlds (or Worlds?) to conquer. A prospective successor/competitor in her own rink doesn't strike me as a real concern for somebody in the position she's in; if she stays in it, it'll be for further artistic fulfillment more than winning more stuff.