I can't say it is impossible because we are in a very interesting market but it is very near to impossible.
There is no need for this replacement, therefore it will never happen. Waves is a cool platform, but Ethereum has gained more popularity so that, it will be in better demand than Waves. ETH price must start growing soon.
in fact, the essence that ethereum has been known to the public by offering useful technological uses of the platform they have developed can make many believers invest, so it has a large community volume and is indeed true for other coins to never occur. now what we want is only an increase in ethereum prices can happen soon because that's what we've been waiting for all this time.