Receiving a Pre-Arrival simply means that your relationship is considered genuine. If no ADR was required for that, they're doing a sweeeet job over at Shanghai.Nope, nothing at all. This is why I'm skeptical. Pre arrival 10 days after AOR2 without any ADR. Seems odd.
You can still expect to re-do a medical, before receiving any PPR request. It's all good news though! Congrats.