Bitcoin is a decentralized currency It is very difficult to say whether such coins like Bitcoin will be discovery in the future. But in my opinion such coins will not be another discovery.
They created many altcoins and say their coins are Bitcoin killers but those coins die with time. Those coins fail to kill Bitcoin even you talk about Bitcoin Forks.
How many Bitcoin Forks are there?Bitcoin is decentralized and it is unique. We did not have another coin among thousand of altcoins can have decentralization like Bitcoin.
Discovery, game changer are marketing words, buzz words used by altcoin developers to scam investors.
This what I like about Bitcoin about it's forks because as long as you have Bitcoin holdings you may earn passive income through forked coins. 😅
But about Bitcoin like discovery coins maybe this will happen on new different networks. It is possible to have Altcoins that may go up high to the moon but we'll never know when. But still they cannot replace Bitcoin of course.