The world is not going to easily let a group of a few hundred thousand people control trillions of dollars worth of assets without a fight.

I don't know whether another crypto currency will beat Bitcoin. Bitcoin could adopt new features as they are discovered and maintain overall dominance. However, it looks like altcoins have already beaten Bitcoin in applications, such as asset digitization and exchange, liquidity, identity, marketplaces, etc. I think Bitcoin can fight back and adopt zero knowledge proofs and some other features, but not for everything. Network effects are for specific use cases. Having a critical mass of currency features does not always buy you a critical mass of identity verification or decentralized exchange, for example.

There will always be an incentive to create new currencies and incentives to use them. In a world dominated by a single currency, the incentive to create and use new currencies is extremely strong. Therefore, I think there will be many different currencies in the future, and there won't necessarily be one dominant one.

I think many Bitcoin maximalists are used to living in an oligopoly where regulations kill off competition. I think the world of crypto currencies will be different. Practically anyone will be able to issue a new currency. It's sort of ironic when an anarchist is a Bitcoin maximalist and has faith that Bitcoin will dominate because "maths" or whatever. In a free world, the incentive is for practically everyone to issue a new currency for practically anything, to the point that the high quantity of currencies is somewhat suboptimal for everyone collectively. The assumption in economics heretofore is that of a single currency.