I think that Bitcoin will still remain the king of the cryptocurrency market, because it is the first of its kind. And when a novice hears the word cryptocurrency, the first thing that comes to his mind is bitcoin.)
I feel it too, no one will ever replace the bitcoin to its place right now since it has already built a strong connection with the traders and investors, aside there are many establishment and businesses who uses bitcoin to its financial system so hypothetically there will be no replacing will happen this time. I don't see any coin running with bitcoins as of now.