Yup after finishing all the SIN, Health card, and all other formalities needed after becoming a PR which needs the passport, and then renewing is the best time.You can renew your passport if you have your eCoPR. Why the wait for PR card?
In some countries, I hear the timeline to get a new passport is a bit long but I assume the old passport is still with the applicant until he gets the new one
 
	
 
	 
 
		
 
 
		 . So, no worries in renewing your passport.
. So, no worries in renewing your passport.