BRICS+ has been saying they’re gonna make a currency since the GFC man. I’ll believe it when I see it. You have to run open capital accounts to have a reserve currency and China has repeatedly shown they’re unwilling to do this.
The BRICS currency may be useful in terms of settlement but foreigners will never save in it. Gold will provide the net settlement layer to the BRICS currency as opposed to a swift-like system, so people would rather just hold gold reserves.
BRICS at this point is nothing more than a buzzword