The transition from Perl 5 to Perl 6 might go down as one of the great language mismanagements in history. For goodness sake, it's been in design for almost 14 years!
It's not quite as dramatic as it sounds:
Yes, Perl6 was announced in 2000, but the actual implementation effort (both Parrot and Pugs) started in 2005.
Guess what got started a year later (2006) and isn't finished yet as well? Rust.
Is it finally time to sit down and learn Perl 6?
Learn it? Certainly. Use it in production? Not yet. The Parrot backend was used to nail down the object system. Supposedly, the mostly-working JVM backend will be used to nail down threading semantics.
Concurrently, they are developing their own VM to get rid of the semantic mismatch between the language runtime and backend VM.