Bitcoin is a very popular crypto coin today, we know that Bitcoin will be very expensive in the future but I imagine if Bitcoin die, whether there will be hope for the future of altcoin? because most altcoin exchanges are to bitcoins
your opinion is highly appreciated.

I don't think so, bitcoin, compare to other coins, just be a shit hole no more.
bitcoin's price so high just because it is one of the first of it kind.
other coin would have so much more potential if-IF bitcoin dies.