Regarding the total supply - this is from sairon :
That's theoretically unlimited capped at 2,000,000,000 coins. However, transaction fees are destroyed instead of distributed to miners and proof-of-work block reward decreases with increasing difficulty. So IMHO it will find its equilibrium somewhere lower.
not true, there's no coin supply limit. the 2 bil limitation applies only to a single input.
that said, the equilibrium part still holds. it all depends on how the tx volume, pow supply and pos supply balance out.
I am going to use one word to describe coin supply. Would you like infinite or unlimited?