That's under the assumption they care, which is highly doubtful. My guess is instead they'll abscond with the funds. But even if they do have the intention of following on this, I honestly don't think they can pull it off, too many people will start to succumb to doubts and start a selling cascade.
Crypto will survive this. Easily.
He has an out he can use as an excuse to get away with this scam
... notice
http://www.paycoin.com/ sells XPY for 20 usd a coin.
He could just say that he blew through all his investor capital and place the blame upon the haters and unloyal base selling pressure and that he would honor his promise that paycoin = 20USD by setting a minimum floor where the buy and sell order books on a his dead "exchange" cannot trade below 20USD thus fulfilling his obligation of 1 XPY= 20 USD.
We don't know if this is p&d yet do we? Where's the conclusive evidence? Stop making fuddy subjective statements.
We don't have to be 100% sure its a ponzi(practically impossible to be with their secrecy anyways) as we can critic them for their actions right now.