Personally I am not sure what option they will choose after de-dollarisation

• They could just issue a new fiat depending on the confidence or marshall law across the country and we extend the cycle to repeat again in a few years
• They could let the banks go bust and use the current circulation and replace it with A CBDC so instead of debt-based money we just have money and it would then be the central bank's job to force people to spend and so there's more taxes and then pull the currency out of circulation as a controlled deflation to keep an artificially controlled economy afloat
• They could go with the world bank and create a new Bretton woods and use the SDR (special drawing rights) as the new reserve currency but this would also just be a fiat repetition all over again
• They could all go gold-backed but we all know governments love to spend and overpromise so it won't be long before the peg is broken and they start inflation stealing again

What I think might happen is each country won't agree and pick one of these 4 while some will try to open up to private money and those ones will become attractive to people and we'll see migration to those countries or even the creation of autonomous zones in countries