it's not only futures of course - the broader physical supply chain of gold is also affected the more imminent impact is on users of 1kg/100oz gold bars. in the future markets the effect is much more visible and quantifiable - so it will start the price movement from there
the demand from 100oz/1kg gold bars will be shifted to its other forms - whose prices will increase this will increase gold's spot premium in the US, putting upside pressure on the global spot price