For those wondering about when the bonus PR will appear (and their expiry), I came across this in their fine print:

• Upon earning one (1) or more Priority Reward(s) during the Offer Period, the corresponding Bonus Priority Reward(s) awarded will be deposited in the Eligible Member’s account, from mid-September until 8 weeks following the end of the Offer Period.
• All Bonus Priority Rewards expire one (1) year from their date of issuance.
  
  source: I can't post the full URL due to forum rules, but air canada site --> /ca/en/aco/home/aeroplan/promotions/status-requalification.html#/tnc

I take this to mean that any historically earned double-ups should start crediting any time...