China and Russia have been trying to avoid USD for years and now,i think that they have succeeded by getting crude oil from Iran with their own currencies.Tgey are even trying to add some more countries in their group in the war against USD.
USD will be no longer a powerful currency in the future if China and Russia continue on this kind of revolution against USD for sure they will succeed. Well, as the market soon to approach recession I see a big decline on the value of USD, and this can be a big chance for other currency, especially with cryptocurrency to take over.