You should never "wait" for a programming language. :) I say this as someone who is deeply involved in Perl 6 development.

Learn Perl 5 if you want to learn how a full-featured, complete, and liberating-to-use programming language works.

Check out Perl 6 if you want to see what some of us are building, and if you value ideas as such, even when they haven't all been put together into a finished, polished product.