In your case (assuming mailing address in Canada) it might make sense to sign up for AFKL Flying Blue. You will be FB Gold and Skyteam Elite Plus after 40000 miles.

As you are on AF's own program you can more easily arrange upgrades or award tickets for your flights to PPT and as a FB Gold/ST E+ you will have a good chance at getting a lot of free FC upgrades when flying NW (for whatever they are worth) plus Worldclub Access also for your domestic flights on NW.