OK so I received a reply from them, which to be fair is well within 24 hours. Though the response is not what anyone who is investing in this would like to hear:
"In the PoS protocol there is no concept of a finite volume of coins. The mechanism contains a system of complications, which reduces the reward every two years by exactly half. Based on these data and based on a preliminary analysis, we compiled a forecast of 333,000,000 ATB
We will try to completely sell out the volume of the block's genesis, but in case some part remains unclaimed - the creators leave it on reserves, where it will be "mothballed" for the period of primary capitalization, in the future it will be implemented to further finance the development of innovations, support of the marketing program and Scaling.
After the start, the cryptocurrency will be presented on international crypto-exchanges, from now on the price of ATB Coin is completely determined only by the demand and supply on the market.
In turn, the ATB Coin development team daily performs tremendous work in an effort to achieve the best quality of service, using the most advanced development and resources. This gives us confidence in the inexhaustible potential of ATB Coin, which will undoubtedly allow it to occupy a worthy place among top-end cryptocurrencies."
Basically there will be 10+ times more supply than the amount sold during the ICO possible on the exchanges on after the ICO...