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.

The entire digital currency is able to work and exist offline. Therefore, if suddenly bitcoin decides to rest and leave for a while on vacation, nothing terrible should happen. It is even interesting how the price of altcoyins will be formed if bitcoin in this plan does not dictate its terms. For the time being I do not even understand why altcoyins can not now have their pricing policy and why everything has stopped because of the drop in the bitcoin rate.