Since no one reads the article, the deadline is Monday. Trump is just stalling. Nothing will be seized.
He could either:
Give some of these properties to the Supreme Court of NY as potential sales (not sell them yet)
Go bankrupt to stall the judgement and payment
Get a loan on his properties to pay the judgement
Divide up the bond between different insurance companies
He has lots of options. Don't listen to him when he says he has none. It's a lie. He will probably do a combination of things: get a loan for half and find a few insurance companies to give him bonds for the rest. He will have to pay a lot of money, so he's just looking for someone else to pay it for him.