Dotcom is a German/Finnish citizen not a NZ citizen, but he does have NZ residence.
Also, he's not short of money for his defence. Even though the USDoJ have managed to steal his assets with a few jacked up, shonky bits of legal trickery, in January 2013 he started another online storage service called Mega. This time, he has used encryption to keep US and other Goverment spies from seeing what is going on. I would imagine this man has learned his lesson, and any proceeds from Mega will be well hidden behind layers upon layers of shell and front companies in banks that have the words "Cayman Islands" in their name.
Actually, he should indeed start Mega and be transparent about it, arguing that was his intent all the time just before he did not know better. The other way around.