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 totally agree with you on this. The most optimistic outcome of bitcoin would be for it to be widely accepted through out the world such that it is used as the currency that it was created as and not as an asset.
This would be the best thing that can happen to bitcoin. To be used as a currency just like Satoshi intended it to.
We are, however, still have a very long way to go before this can happen.