Bitcoin Gold definitely has a future. It has respected team behind it that makes me believe in it. Its success is also quite dependent on the rate of bitcoin. They are interconnected I would say. One coin is influencing another one.
Bitcoin Gold has been left under the radar for quite some time now. Most people have focused on the Bitcoin Cash Hash Wars than other BTC forks. While this came to an end, Bitcoin Gold still hasn't gathered the level of popularity as other leading forks (such as BCH and BSV). Of course, BTG has a dedicated development team to make the cryptocurrency as reliable and secure as possible for daily payments. However, for it to achieve true success, it would need mainstream adoption.
Otherwise, Bitcoin Gold's future will be such were it'll be used for pure speculation, rather than as a useful cryptocurrency. It could become the same as Dogecoin, where it's still alive and actively traded within many cryptocurrency exchanges, but without traction in development or innovation.
Nonetheless, it's true that BTC influences BTG's price across the market. Since BTG is an altcoin, most altcoins depend on BTC's value to rise for them to gain traction. It would be surprising if either BTG or any other BTC fork could become independent of Bitcoin's price. Despite this, BTG has great potential into becoming something unique for the masses to enjoy especially with its ASIC-resistant algorithm. Just my opinion
