I also think that Ethereum will grow stronger with time. Its market cap is around 10% currently but I think it will steadily rise in the future and not fluctuate as much.

However, I'm not sure that Bitcoin will lose its position as the leader in the crypto world. Not to mention that if Bitcoin collapses, all the other coins will probably collapse even more percentage-wise.

The price of Bitcoin influences the whole market at present and it will take a long time for the industry to mature enough for that to change.