Do remember that many people who submitted application in Nov 2017 have not received nominations, they will be considered in 2018 quota
Yes. You are correct. But I believe that number is not that big to wipe out 2018 qouta or they knew more people will be interested. Thus, they increase their 2018 quota.
I don't see any reason for them to keep the minimum score high unless CIC decides to ruin the show and favor PnP which will lead to higher cut-offs throughout Q1.
It seems that OINP are still processing their back-log and will start the party once the load is relaxed.