Little by little any country in the world will turn its back to the U.S. dollar. Do not dream, Saudi Arabia will do it in the coming decade, or maybe the following one. Any country, when it becomes powerful enough stop using it. Just look at China.
Technically though they used a leverage trigger on the US to avoid the dollar, basically taking all their US bonds hostage as a means of shooting them in the foot if they try to do anything that harms their global trade interest, of course Trump is willing to play chicken on that and still impose tariffs so this will be a fun ride.