What I never liked of AC is that has a very high interest rate in the first year, And this will bring down its price in the medium and long term! With 5 % is OK! 
If you can change that too much better!
Already there are enough coins over with hidden premine sold! yes POS rewards *will* be adjusted via patch , and hard fork..
shouldn't the PoS mining rewards remain intact. 100% interest first year is one of the few reasons why i bought AC.
It is going to have to change to account for the extra 30M premine that was already distributed.. basically instead of starting at 160m -> 320m to end of the year with 160m paid out through staking. we must take a dilution of the 30m.. so that it goes from 190m->320m within the year.
If I remember correctly (correct me if I'm mistaken) when the 20106 blocked was mined there was only 141million coins ? So with the premine wouldn't that make it 171mil?