Only 760, 000 COINS
NO WAY, 760 000 coins is what they just sold as ico on yobit so unless there won't be reward for POS then there's more!!!
Taking that pos is 50% there may be a maximum yearly inflation of 380000 coins but that number won't even be close to the real inflation. I estimate a max 50000 yearly inflation with this pos reward but remember that it can be changed anytime so there is no possibility to determine max coins where pos is involved. Max coins are 760000+pos rewards this is the closest definition.
It'll stay under 1 million coins a very long time!