Perl didn't die. It transformed to Raku.

This is evolution. Not death. It found what are its strengths that would make it relevant today and it made the leap of faith. That is remarkable.

No one need to switch to Perls 6 and Perl 5 can evolve incorporating incrementally stuff from Perl 6. Not every core team has the time, the $$$ or the devs to put forward long term plans of compatibility.

People always expect "someone" to do it.

What Perl 5 people could do, is improve its code base, clean it up and use sane software engineering practices to make code boring, modern and much more friendly for contributions.

You know, the anthropic side of software.