Most important monetary science breakthrough to be implemented is that money balances are centrally managed so that exchange rate with EUR stays the same (10,000:1), the balances itself will be adjusted to the up AND to the down, if the ingame exchange shows that value of ingame money is changing. This requires there to be a depository of something external value (BTC; EUR) and deposit/withdrawal option.
This elastic supply with fixed exchange rate is reminiscent of eMunie/Radix design, very interesting.
Will you allow legacy CK players to deposit legacy M via a depository as an external something of value? Old M has a value.