Actually yes, the list of top tokens is also changing with time. What we can be really sure about is that Bitcoin and Ethereum must always be at the top. Other currencies are likely to become less popular. I remember that the top-10 was completely different some years ago. I saw Ripple, Ethereum classic, Litecoin there, but now their places are replaced by BNB, Solana and Cardano.
Yes, those two are of exception.
It's there to stay but if there will be some better altcoin than Ethereum, we might see it go below like 3rd or lower. But for bitcoin, it's the only one in the top 10 that will never be gone.
We've heard it many times with those projects that they will oust bitcoin but they never did.