For me, it could be that bitcoin (rather than bitcoin cash) will be the leading store-of-value crypto, and/or used as the equivalent of bank-to-bank transfers of larger sums due to what could eventually be much higher tx fees and used by oligarchs, corporations and govts, possibly nestling alongside the IMF's SDRs? I think we probably haven't yet seen the game changing crypto currency/currencies of fast micro-payments that will be mass adopted; something to compete or beat the number of present VISA transactions.