Block reward is decided by miners decentralized voting. Block reward change depending on votes is every 5 days. In final sustain phase block reward/vote varies from 1-8 HVC. Current reward is 3 HVC/Block, block time is 2min so 3* 720 blocks per day, 2160 HVC/day mined. Currently.

Inflation per day varies depending from block reward:
min - 1 HVC reward - 720 HVC/day (365*720=262 800 HVC/year min)
max - 8 HVC reward - 5760 HVC/day (365*5760=2 102 400 HVC/year max)

we can only speculate on next block reward (1-8) but miners tend to vote high so lets say for calculation purposes 5 HVC/day average for next years.
365*5*720=1 314 000 HVC/year
so for 10 years ~13 mil coins

current supply is ~90mil max supply is ~100 mil so about ~10mil to be mined.