I do not think DVC can disabile borrowing before the end of the contracts. 32% of the points at AKV have a December UY, owners wouldn't have enough time to use them all. PVB is another December heavy resort. But even at OKW, which is fairly distributed, it would be unfair for December (or other late) UY owners.
They will probably disabile banking, but not borrowing.
They will probably disabile banking, but not borrowing.