http://i.imgur.com/iwhqrco.jpg

I propose transitioning to Proof of Stake v3 with static block rewards. Rather than patching the current headache of a code base I suggest abandoning the old code, starting from a fresh code base, and manually importing balances into the new client. Of course this means starting over from block 0, so it's a bit more dramatic than just a hardfork, so community consensus is a must.