Well maybe BTC will compete a lot with other coin. BTC can not be the first coin in the market. I think in the next 5 years, BTC will be lower than ETH and NEO. Now some of the coins are trying to develop useful uses for consumers and attract investors.
Others speculate so as well because pf how popular etherium is becoming. Others think that some day will come when etherium will actually surpass bitcoin because of its aspects that are better than bitcoins. Some even claim that btcoin will eventually die because of the many altcoins and competition being created. Bitcoin has slowly become outdated because of its high transaction fees and long confirmation times, and people say that this is what would eventually kill bitcoin.