Would you consider implementing the hop protocol. It is a radical modification.
Thank you. If this concept is viable I will put it into the first place in my to-do-after-the-launch list.
If you are going to launch the coin first, the it might be better to do it as a spin-off coin rather than directly in Nxt.
Or alternatively, you will need approval from users.
It changes the inflation model. Holders of USD units of value are able to print 1 USD worth of Nxt. This means that the aggregate supply of Nxt fluctuates with the Nxt/USD exchange rate. That is a pretty substantial change.