IF btc becomes a reserve currency with the same status as.fiat currently does, it will take a LONG time. Revolutions don't happen.overnight.
It will not be a currency or as the same of fiat money because bitcoin is all about fiat money. If we replace or take over fiat money bitcoin will be useless.
not if it can detach itself, from that useless crap of printend money everyday, fiat is now needed to point a value for it, but in the future i'm sure bitcoin can work for itself, when the fully stability is achieved