Bitcoin will never be replaces by another cryptocurrency because that network will never compare to Bitcoin's network. It is so strong after all these years and will only continue to do so.
Yes you are right. I am also thinking that the technology of bitcoin and blockchain is much stronger and it will not be replaced by any other currency. Bitcoin has worked much harder and now it is a world's stronger currency. It is being used by even the world celebrities for their use and for their future profit. Many bigger companies are now adopting bitcoin for their businesses.