I know a lot of people that didn't even know how to claim Bitcoin Gold. So circulating supply is much less than expected. Bitcoin Gold price can go anywhere whales want. I think it's too hard to guess the price movement.
It apparently cannot go anywhere whale wants as i doubt if whales will ever want to support a shitcoin. presently it is trading around $124 after dropping so bad from about $400, whereas most people have not even gotten ways to get theirs and dump it yet. It is already dead and on coinmarket cap, it is 945th rank. How worst can it get for this coin?