At this stage, the Altcoins are quite capable of existing without Bitcoin. I even wonder how the price of cryptocurrency will change without the current price dominance of Bitcoin. Since there will no longer be cryptocurrencies with such a high level of capitalization, each coin and tokens will have a price that will not depend on any cryptocurrency, but only from the state of its own project. That is, some coins and tokens will grow in value, others will fall. It will be a real free market, not its ugly form, as it is now.