And how do you think restitution of stolen bitcoins, radically dispersed around the globe, will work across multiple national borders? I doubt there will be retroactive enforcement of any cryptocurrency theft even if governments are able to work together to regulate bitcoin exchanges in the future. They will be too busy arguing over the US government defaulting on national debt, letting inflation wipe that debt away, and dealing with the worldwide recession resulting from the popping of stock, real estate and US dollar bubbles. Theft of bitcoins will be far from the priority.
Crypto will likely be treated like a hybrid currency commodity. An asset class with similarities to gold except it can be used efficiently as an exchange for goods and services.