What? I don't get it you wanna us to exchange our mined POCs for some sharkcoin? WTF is it?
Horrible Idea.
Revert the chain back to pre-billion-dollar-block status, issue the new client.
Users will vote by whether they use the new client or not (as it is supposed to be) and the new fork will win out.
SharkCoin != PopulaceCoin.