I honestly don't see BRICS countries going for Bitcoin, it means giving up control and even if that's a little control with a small position, they are not up for it, not one of these countries has become more open, in fact state control is getting bigger, so why would they want to bid up a money that would fund users to escape that control?

"A common currency would be challenging for the BRICS to initiate and maintain, but it could have an impact on Bitcoin". Lyn Alden