You can only renew your PGWP (or apply for BOWP) once you have renewed your passport.
You can send a case specific inquiry to CIC upon receiving PPR if it comes some time in say March, telling them your intent of getting married and wish to delay COPR.
They would probably ask for your wife's (once married) docs and usually would do it in a couple months. Then they would issue you new passport request (even if your spouse is in India). If you get PPR but haven't landed you would still be in the same situation.
The above is the fastest way to get your Spouse a PR along. Else if you get a PPR sooner and try to complete landing, then you would have to apply and go through spousal sponsorship which would take a long time.
You cannot decide either of these now unless you actually receive PPR.
What you should do is, decide this based upon WHEN you get PPR. If received even by Mar 1 (One month is quite enough for COPR - and you can do landing at the border). If you get it after wards then just Inform CIC that you are going india to get married and they need to process your spouse as well.
Renewal of passport is probably important either way - whether you new to get work permit or you need it for PPR.