I am going to stick my neck out yet again.
CASA simply cannot and will not , even if they wanted to, tell you that you can fly without a card after the 31st.
Please read the Ministers Media Release again, this time for comprehension.
And please please, even if it hurts, be polite to the security guys if they want to talk to you, they are supposed to be up to speed and remember it is not their personal fault anymore than it is yours, if you have done the right thing.