EOS is still a token of the Ethereum smart contract, but it will soon launch its own main chain. I've just watched the EOS page today, which will be released on time in the next month. Let's look forward to a more efficient and more scalable EOS than ETH.
The eos will never be able to surpass the etherium even if it is better. just like the other altcoin can not beat bitcoin. Eterium was the first such asset, it will remain so