Bitcoin Gold seems to have a solid development team, as it has managed to quickly implement an ASIC-resistant algorithm after the release of Bitmain's miners for Equihash. If it remains a GPU-only mineable coin, then it would be much more decentralized in the mining process than both Bitcoin and Bitcoin Cash. However, its success will only depend on the level of adoption it would experience in the mainstream world.
Considering that it has all the same features as Bitcoin, with the differences being an ASIC-resistant algorithm and better privacy, it could be well worth the investment after all.
Nonetheless, do you think Bitcoin Gold (BTG) will have a future or not?

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.