Where I see this money coming into crypto is the indirect means. For someone who is earning returns on his gold due to it rising up might want to diversify thereby putting some money into crypto.
That's very unlikely. At most, the profits booked through Gold will be put into Silver for diversification purposes, especially when it comes to actual precious metal bugs. I have been reading through many precious metal blogs and whatnot, the hate and dislike towards crypto is intense. To them crypto is more unnecessary inflation, something they are against.
Crypto as alternative investment option is at the very bottom of pretty much any investment list. People aren't just skeptical about the market conditions (read, volatility, manipulation, etc) but also the fact that it isn't backed by anything. Crypto appeals to traders looking to leverage the volatile nature of this market and short term flippers, which is where most of the liquidity comes from. Other than that, it's not much actual interest.