No it's not possible because bitcoin is father of all cryptocurrency and when a new user hear about digital currency thrn bitcoin comes first. And you can see majority of the website accept bitcoin but not other coins. Abd also bitcoin is in top most position.
Even it's possible it will cost million dolar
And the first in the line will always be first and the only way that bitcoin will ever replaced when it has doesn't any value at all. But if that happens then for sure there are a lot of crypto's that are not able to get that position. It is very impossible for now that it is going to be replaced by another crypto's but still we don't know what will happen in future.