The thing is, Perl6 as it exists today can not be used as a replacement for Perl5, and in consequence, Perl5 development continues and will continue for the for

The thing is, Perl6 as it exists today can not be used as a replacement for Perl5, and in consequence, Perl5 development continues and will continue for the forseeable future. It's better to think of Perl5 and Perl6 as two separate languages in the Perl family, similar to various Lisp dialects.