As Bitcoin is a leading currency, certainty about technology will not be equal to the current altcoin. Anyway, the value of Bitcoin has been accepted by the community, which is undisputed.
If one day, there is a Coin that can replace Bitcoin, I think they will have to make better technology, such as the NEP5 technology.
In my own opinion, Ethereum is the only cryptocurrency that has the capability of replacing bitcoins because most of the altcoins today has a price based on ethereum coins.