Well, I went to my local Scotiabank branch this past Friday, and I did not receive any crisp $5 bills (the teller who served me informed me that the branch hadn't received any crisp $5s in quite some time). But the good news (sort of) is, I did receive a $5 bill with the new signatures (prefix APP, to be exact). It was recycled, but it's quite possible that the new signature $5 notes may be circulating in my region now (maybe someone got it from another bank branch, got it in his/her change, and saw its way into my neighbourhood branch, perhaps?).
I will be going to a CIBC branch this Saturday morning (weather permitting), and if I do happen to get any more APP's and they are within that same range, then I will declare the Jenkins/Carney signatures on our $5s to have arrived.
Also, a bit off-topic, but I will tell you I paid for Christmas gifts with a $100 bill this afternoon, and I only received $50 in my change - rare as it seems, I received a $50 bill, and with the new signatures also (FMK was the prefix)! I would have expected to receive two $20s and $10 in whatever form (due to efficient counting and anti-robbery reasons), but that tells you the cashier wasn't acting like Scrooge today!