By looking at how bitcoin, I dont think it will lose its value. Because among any other crypto and digital currency bitcoin is reigning. But I believe that everything has an end. It may not be as soon as we know but there's always a limit. So now, enjoy every second you have in bitcoin. Do not think about the future, what matters is today.
Lol do you think fiat will have an end? If so then bitcoin is the next generation of money ,
If it all happened i don't think even bitcoin value lost ,
It could be worth more than fiat today , bitcoin is the future of money ,
Once people can accept the whole thing about bitcoin , this scenario will really realized.
I didn't think it will happen even in the future, fiat will remain in this world as long as the government still find it useful for the people.
The new currency which is the crypto currency are here with a threat as well and the reason why the government are very strict to it is because they want to protect the interest of the people using it and to prevent money laundering and proper taxing of transactions.