@Roger Odisio Bad news. Neither Brazil, Russia, India, China or South Africa have judicial systems making up a significant portion of their country's governance. Capital will not invest to the degree needed for BRICS to be able to offer a stronger currency.
Not going to happen. To wit: go throw your 401k into any of them. The risk is junk bond. No recourse in the event of a loss. Your BRICS Oligarchs will sure be happy though as they flee unimpeded with your retirement.