It's not going to be replaced any time soon, there's no realistic replacement at the moment, but there is a slow movement away from it. We've already seen a stampede into gold from central banks. And pimco have said they're going to relocate funds out of dollar debt.

After the nonsense with Greenland no one really wants to give anymore financial power to the US so we'll see more assets kept in local currency or different reserves currencies like the Euro, Yen, Sterling, or ChF.