It depends on what you mean by "designed". If Perl 5 had been designed the way Perl 6 is being designed, you might still be waiting for it. :-)
in reply to Re^4: Perl 6 was released years ago
in thread Perl 6 was released years ago
But to answer your first question last, I think that the designer of Perl 5 was short-sighted enough that it didn't even occur to him to ask himself whether Perl 5 was supposed to be the last rewrite. The guy designing Perl 6 is a little smarter. Fortunately, or unfortunately...