I can confirm that the supply cut will be implemented. To 750 million as described in the plan.
Regarding the reward adjustment, our intention is to adopt it as well, but we need to figure out the security implications properly first. This investigation will start after witness sync.
We will implement the supply change in the code in the short term.
Just posted on slack!
Relief! This change alone makes a big difference to sentiment. 75% of the coins in circulation compared to 30% and we still have time to buy coins at a good rate while the rewards are high.