Dollar dominance could give way to a 'tripolar' currency system as China's yuan and the euro rise on the world stage

• The dollar's status isn't under threat anytime soon, but the yuan and euro look most likely to cut into its lead.
• A "tripolar" reserve currency system is plausible, economist Stephen Jen told Insider.
• The greenback saw a dramatic erosion as a global reserve currency in 2022, but it's still dominant in international trade. 

The dollar has been king for decades but it's slippage as a reserve currency has raised concerns as to whether a rival currency will dethrone it.