I don't think bitcoin will die, but also I am not 100% sure it is the future. I think it will be used for large payments, it's a slow, heavy online gold. I think something else will be used for normal payments unless lightening is somehow amazing.
I agree, Bitcoin will become the gold of the cryptocurrency market but it will never become a means of payment. Bitcoin is too slow and transaction fees are too high, the future needs a reputable, stable and fast currency.
Agree, it's hard to make bitcoin a currency because there are so few total supplies. I think that in the future bitcoin will become a digital asset like gold because with the price being more expensive, people will prefer to invest in bitcoin because of its practicality and also its security