I think it will at least for the upcoming few years.

The issue is that almost all other cryptocurrencies are heavily dependant on BTC, and whatever happens to it, the rest will also experience.

I noticed during the market crash. The rest of the altcoins were behaving almost like BTC, going up and down in accordance with the BTC pump and dump.

Thus, I believe BTC will continue staying dominant unless another coin really proves being better than BTC, and beats BTC.