The expansion of BRICS would be a major blow to the US dollar, which is currently the world's reserve currency. The US dollar is used in most international transactions, and it is also the currency of choice for many countries when they hold foreign reserves besides BRICS would enhance its global influence, creating a more balanced multipolar world order by including other emerging economies. This expansion could include countries like Indonesia, Turkey, Mexico, or others, thereby ensuring a more representative and inclusive platform for economic cooperation. If BRICS were to launch its own currency, it would provide an alternative to the US dollar and could help to reduce its dominance in the global economy.