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.
I personally like one factor of bitcoin and that is it's deflationary nature. Since the supply is limited it increases in price almost every year.
Holding fiat is like giving away your money to someone else while holding bitcoin gives you the ability to 'own' your money while getting pretty good returns on it.
I know the dumps can sometimes be devastating but it cannot be all rainbows and sunshine.
I don't worry about my bitcoin's at all since I hold it for long term and price definitely increases in the long run.