I had previously doubted that Bitcoin would be replaced by another currency. But my mind has changed. Because I see there are many other cryptocurrencies that the developers are trying hard to solve the problems in cryptocurrencies. What about bitcoin? We don't know who are the developers and no effort is being made to develop it.
If you don't try hard, your rivals will win. Bitcoin's rivals will win too.
there are definitely doubts that this will happen, but it's possible. I'm wondering myself what will happen, but as long as bitcoin has the biggest community, it'll be safely leading the way