Because he's bound to face serious legal consequences for his lies and forgery, Wright's whereabout is unknown and he's fled from his previous residence in Wimbledon, London. He could face Arrest or extradition, depending on his location.
What's the point for him to run, if I may ask? What's he afraid of? Why not stand and face the consequences of his actions since he had the chance to stop parading himself as Satoshi did a did a long time ago, which he refused to take? Instead, he keeps on pushing and suing who ever comes his way.
What can keep a man running and hiding for a long period of time is the amount of wealth he has at his disposal, of which I doubt he has much yet to be seized as ordered by the court to seize all his own assets. So how long does he think he can run before he is found and brought back to face judgement?