We too are waiting to find out if this will be enforced. As it stands, there would be no point in us going to the expense of having a new rental contract drawn up, having it and proof of our income notorised only for our permits to be cancelled.
We will wait and see, ours are due end of March 2015. Will probably take a Visa at that point, if there are any changes whilst we are there we will take residency.......if not we will reduce the time spent there and use Visas.