There is no need to wait for that, because ETH is already much more useful than new tokens whose platforms are not well known at all, so what I am amazed at is why the OP asked such a question, did he not see most new tokens using the platform from ETH.
He only asked about potential coins like ethereum which are doing well. There may be coins born from the ethereum network that will make it big.
but if I see potential, I'm interested in TWT and CTSI. I don't recommend it but this is just my interest and still in my study process.