Bitcoin is the oldest and most valuable cryptocurrency, but a crop of nimble competitors, including Ethereum and Bitcoin Cash, could lure investors away.
I think the event you're talking about isn't likely to happen anytime soon. The long term is also a bit difficult, but not impossible. As you mentioned in your first sentence, Bitcoin is the ancestor and most valuable of this sector. Especially, having a dominance rate of 54% in today's market is enough to prove how strong it is. For that reason, I would like to state that in the short term, this situation is only a dream in the short term and only a low probability in the long term.