I'm calling it. Either the coins in that wallet address get moved, and we never hear from visacoin again, or he strings everyone along to see if he can squeeze a few more BTC out of this, or he announces the coins were stolen or some other such unlikely story.
He's probably gone quiet because he's trying to figure out his exit strategy. Anyone who gets a single Satoshi back from this should count themselves extremely lucky.
He is good at silent exit, everything including his English accent make me guess he is the famous RealSolid, which is as famous in the scamming side of cryptocurrencies as Nakamoto is at the invention side of cryptocurrencies.
Satoshi Nakamoto= the god and inventor of cryptocurrencies, the guy who knows the essence of this technology better than everyone else.
RealSolid= the god and inventor of everytime working scams, the magician that knows the effective dumbness and greed among crypto-enthusiasts better than anybody else!