Change the name Perl6 to something else. Everyone who will be interested in Perl6 due to their knowledge of Perl will still be interested in a new language from Wall whatever the name is (as long as it isn't too long). Strangers to the language will prefer to learn something new than what appears to be the latest update to a mature language. This is more practical than trying to raise money for advertising.

Personally, I like the name Perl6.

Be well, rir