Many coins are trying to 'replace' Ethereum.
EOS, Cardano, Stellar, and a few others, even Bitcoin Cash, Litecoin and Monero will have smart contract implementation.
I doubt that it will do so incredibly much on the market again as it used to do to a single coin as when Ethereum first came up with it.
There are many, many other players out there now, and now it's about who will do it the way the created token can work with, the most secure one, the one that has the best tech, and so on, it's much more of a competition, implementation of smart contracts is not a definite future sight for making huge profits on your Investment, beware.