Keep a note Folks !
Its quite obvious if the photos sent at the time of Application, seems questioning to the visa officials they may ask to get new/recent photos for each members at the time of PPR.
But we can be active/alert in terms that., as per the norms any pics has to be not older than 6 months, the time we applied and the time of PPR arrival is quite a long period, so even if a new/recent photos is asked, be prepared folks to get a new ones, ahead of the PPR arrival so that you can save a day or two, as PPR is always a BIG milestone for all, and no one wants to wait a minute after that
In case you are not asked to submit new pics, you can always carry those with you in Canada, so go for it ;D