]I do not have a Chinese bank account and I don't want CNY in the short-run, but long-run. I'm speculating that China will back its currency with gold in the future in the event of a dollar crises, what I'm concerned with is if I put dollars or crypto into BTC-China, can I get it out or is stuck there because of Chinese restrictions? I understand there may be transfers between dollars and CNY for fiat, but so long as I can get it out in some form without huge fees that's all I need to know.
I have no real expertise on this, but I don't think you can receive CNY from an exchange unless you have a Chinese bank account. If you went to China and bought a stack of yuan then brought it home it may be very hard to sell outside of China. Depending on how much it appreciates it may still be worth it.
I find it hard to see how China might back it's currency with gold. The problem is that there is not enough gold to do that without radically raising the price of gold. In that case China makes many other countries more wealthy than they make themselves, for example their rival India. So even if it is true you would be better off buying gold, since you can sell it worldwide.