Bitcoin fame in the future
is there any alt coin that will match the bitcoin fame in the future.
about whether the bitcoin will be replaced by alt coins as a crypto
As far as I know, there no coin that can even match bitcoin in terms of its popularity. I consider bitcoin as a household name today. Crytpocurrency=Bitcoin. And you will find countless article in the web about it (positive or negative). So I don't see any coins right now that can even challenge its dominance. Ethereum and Ripple both tried but the so called 'Flippening' did not happened.
But in this industry, anything is possible though, there might be a coin
someday that will come out and replace it, but with the current set of altcoins, I don't see anything getting close its terms of popularity and market dominance. Many hard tried but all of them failed (Ethereum, Ripple, and Bitcoin Cash).