And I personally don't think that BRIC need their own unified currency, it will be redundant moreover if it will only be used on interna BRIC countries transaction, and not to other countries outside of BRIC.
There must be some truth to it if they are all saying it, no idea if its just at rumor stage but all through 90's we have talked about Euro, and eventually it happened, we do not need something exact for right now, it may not happen who knows maybe for another decade, we need to establish this BRIC alliance first, then maybe one day it may happen. Not sure what that would mean for bitcoin or dollar, we need to live to see it.
Yes actually some media said that, this topic has been made several time on this board so I have done some research previously. These are some official statement saying that BRIC doesn't have the agenda to make their own common currency.
https://www.bloomberg.com/news/articles/2023-07-05/brics-has-no-immediate-plan-for-a-currency-cfo-of-its-bank-says
https://www.reuters.com/markets/currencies/what-is-brics-currency-could-one-be-adopted-2023-08-23/
In my opinion some media take a statement on BRIC summit by Brazilian president that said no country should be forced to used USD for transaction if they don't (want to) use it, and then those media jump into conclusion that BRIC is going to make their own currency. But then when the media ask about the matters directly to Brazil President the clearly denies that.