IRCC is not going to revoke anything, thats 100% sure, but if you will ask the extension there is a high chance that they will ask additional documents such as lease agreement, any job offer you have, POF may be, so its additional paper work you need to provide them as a proof and you need to inform them that you are landing permanently,
So, as per my advice, you should go and land if you are planning to do soft landing before the expiry of your current CoPR, probability is that once you will receive the CoPR extension you might have to go permanently, also, the extension might take a lot of time this is as per my understanding as i am talking to several people on this and they said that IRCC is not responding on timeline to extend the CoPR.
Good Luck!