For a short post, there is a lot to digest and unpack. Personally I'd need to get my head around the implications.
However I'd like to commend you both for recognising an issue with incentivising investors and taking steps to rectify it. Hopefully this will prove the first step to moving Steem in the right direction.
Do you have a rough timeframe for when these changes could be implemented, if they are accepted?
A few weeks, conservatively. We will roll out the code and then leave time for review and discussion before a date on which the witnesses may upgrade the blockchain.