I think you have to keep the bonus blocks, otherwise as awesome person says it becomes just like every other coin. I am worried that this change makes it rather like every other coin anyway ...
What's your suggestion?
I don't have one I am afraid, indeed I don't think there is an answer. The part of the bitcoin protocol which requires that the reward of every block be known
at the time you start mining the block means that the original concept of the coin simply cannot be achieved.
I have an insane idea.... why dont we just broadcast the block reward as
notfound(slice rewardValAfterBlockStarts() )
so was could just declare the value of the block to be x or 0, then after the block begins we update the block hash to reflect the true value ...