Does it make sense to believe that Bitcoin could one day be replaced by another cryptocurrency, that is, a cryptocurrency that really does make Bitcoin obsolete?
I do not think that Bitcoin is going to be taken over by a other currency because Bitcoin is the most popular one so it would not make sense.
It would make more sense if Bitcoin took over the other cryptocurrencies.
anything can be replaces someday with a new technology and a better one. just the same way fiat replaced the old way of trading and when no money were created and just the same way bitcoin is (to some extent) replacing fiat and so on.