It will always have value for those who use it in the way it is meant to be used in the first place: as a currency.
Have a look at Venezuela and you will see what BitCoin is actually meant for: To free the people frrom the yoke of Fiat and throw off the hand of the oppressors.
But maybe mankind isn't ready for BitCoin yet, because all most people use BitCoin for is to make more fiat money. What could possibly be lost if mankind drowned in its own stupidity?
That's an interesting thought because I look at it still in terms of fiat. Isn't that comparison the entire reason why it's becoming so popular and rising so fast, though?
If that interest wains, so does the use case and value, if you ask me... but I still, personally, think it will be viable in the years to come. Maybe, just maybe, in the future Bitcoin will be the Global Currency... or perhaps it will be a different Cryptocurrency that's currently worth just a penny or 2 now that becomes more valuable.
That would be interesting to see.