I think the most optimistic outcome for Bitcoin would be to return to its roots, which is to play to the nature of bitcoin as a currency, as the opposite of global fiat currencies, coexisting with global fiat currencies and ready to replace the declining credit of fiat currencies, such as overissued US dollars.
Every technology has to evolved, Internet was developed from ARPANET then eventually group of networks and then it became the modern Internet that we know of. Same as cell or mobile phones, not it became not just a phone, but a "smart phone'. And so is the bitcoin, from a payment scheme, to store of value to an speculative asset, to hedge by companies in their balance sheet.