It is quite obvious to me that we will definitely see these "ethereum killers" go down in the list for sure. Some of them are making themselves not be against ETH all times and have their own merit and their own ecosystem for sure. Like Avax is something I can see going for a while, its really not that terrible because they are working on a project that changes the "proof of ...." part of the crypto world. But even they may not end up with something decent. All in all I believe that we should not really be surprised if top ten rankings will not look like this in a year or two, most of them will be gone when ETH 2.0 hits the market.