The 20-year-old Ruby and Python were brand new at some point in time too. It's a bit silly to declare the current crop of languages to be with us forever. I can already notice where being a brand new language makes Perl 6 address new inventions in the past 20 years much better: superb Unicode support and getting concurrency by simply using .hyper/.race methods, not to mention grammars and autothreaded junctions. This looks pretty revolutionary to me.