Perl 5 and Perl 6 both are under active development, and that will continue as long as people are willing to work on both projects. (You try predicting what volunteers find interesting.)
If you want to use Parrot in production, feel free! It's been in distros for a while. I can't give you a list of exactly who uses it and for what because that information's not visible to developers.
The current Rakudo plan is to have a big release at the end of April (modulo any schedule changes due to real life intruding on its lead developer) intended for end users. Like Parrot, Rakudo has had regular monthly releases since January 2007, each one better than the previous. Whenever you find that one of those releases meets your needs, you're very much welcome to use it. We tend not to believe that there's a single version that is the point where everyone should use it for everything, and we encourage you to make your own evaluation.