If each iteration / generation of blockchain tech were to be sooo different, maybe you could start with the ol' 1.0, 2.0, 3.0, etc version type of talk, but I reckon it's just marketing fluff at this point.   You see EOS and ADA talking a big game.   Maybe you don't hear as much about PHR and NIM but there are many-a-project in development these days that are future projecting, don't doubt that.