No individual currency, greater regionalization of each currency.
As regards the EUR, I wouldn't say the UK leaving is sufficient to claim "the EU is already actually starting to break up." I don't think there's serious existential threat to the EUR long term, and there are plans to move away from the dollar.
Those factors don't matter much for CNY if China can exert sufficient political pressure on its economic dependents, which it will likely attempt given the long term geopolitical payoff.
I see those as the 2 main regionalizing forces, although as they wean their populations off the dollar, other smaller currencies may follow as it loses benefits of being global reserve.
As regards the EUR, I wouldn't say the UK leaving is sufficient to claim "the EU is already actually starting to break up." I don't think there's serious existential threat to the EUR long term, and there are plans to move away from the dollar.
Those factors don't matter much for CNY if China can exert sufficient political pressure on its economic dependents, which it will likely attempt given the long term geopolitical payoff.
I see those as the 2 main regionalizing forces, although as they wean their populations off the dollar, other smaller currencies may follow as it loses benefits of being global reserve.