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.
In my opinion, one of the optimistic outcome bitcoin has given to its investor is the financial freedom they can never get as they continue using fiat. The government has caged our chances to get a chance to be wealthy because they are too greedy of getting all of the people's money. Actually there are a lot more optimistic outcome that bitcoin caused like improvement on one's responsibility and life. A lot of people are much grateful in bitcoin as they get the right timing for it and benefit a lot from it. Regardless of what's happening right now, let us keep on looking at the bright side of bitcoin.