I applied to sponsor my wife last December. Medical was done in May, and we're still waiting for pre-arrival and PPR. I know someone who applied in January and already got their PPR a couple of months ago. Sooooo processing times seem random :(
I got my ceremony invitation yesterday, scheduled for January, 6th. I have been in DM and ceremony-ready since August, 20th. Office is Vancouver, BC.
Best of luck everyone!