Maybe, yes, because bitcoin is already famous to people but it just that some are not interested about it yet because they do not understand it. But sooner or later, I believe that when people understand the importance of bitcoin, they will also want to have it and this will be the reason that bitcoin will stay after 100 years.
I do not believe in that. Bitcoin volume is restricted, transactions are slow, new cryptos are comming. Therefore, smth more modern than btc should come up to the market.