Bitcoin itself won't be taken over/replaced by a different cryptocurrency unless there is some major shift with the cryptosphere or a lot of the fiat financial systems start to move into cryptos and everyone pushes for a new one.
Bitcoin can change and be modified, but there's a very small chance that Bitcoin will be replaced in the foreseeable future.
It can be possible or maybe not bitcoin was the first successful virtual currency ever created and ..,
after the success of bitcoin other created there or currency because they also wanted success that end up alt coins..,,
Maybe someday bitcoin experience a problem that can the answer that it will be replaced by other..,
The bitcoin was Introduced in 2009, Bitcoin was created by a developer or group of developers going by the pseudonym Satoshi Nakamoto. Initially the value of the currency was set by users on forums until the first exchange outlet was established. It is known as a "crypto-currency"; meaning that the money and transactions are secured and controlled through encrypted passwords. Since its introduction, Bitcoins have been gaining momentum worldwide, with over 1,000 merchants accepting the currency.