Hew1,
The answer is Nothing, and this is exactly the reason (amongst many others) why the proposal whichever way it goes is doomed to failure. They will not be able to raise the money from sales as existing purchasers will not be paying anything in the first instance and those who voted no will then 'resolve' their contracts and demand immediate payment.
So the question is, where will the money come from. Any bank in the right mind would see that the risk is immense.
All it does in my opinion is to give them more time to dispose of assets for their own ends.