Well, that makes a big assumption. The assumption being that there will actually be a Perl5 release before Perl6. It's been almost a year since 5.9.1 was released, with no 5.9.2 appearing at the horizon.
Well, but then even if I'm not involved into anything having even remotely to do with p5p, it's hard to believe that 5.9 won't make into 5.10 which is a "next major release".
So, for various reasons, I think it's unlikely much of the perl6 goodies will get implemented into perl5. Which is a pity.
Hmmm this sort of things are hard to predict, longterm. And Perl6 development is guaranteed to take quite a while. Just the other day Larry wrote in p6l:
Me too.  If it's any comfort, just think of the design of Perl 6 as
a genetic algorithm running on a set of distributed wetware CPUs.
We'll just keep mutating our ideas till they prove themselves adaptive.
(this is now one of my .sigs!)

In reply to Re^2: (Sort of) poll: what Perl6 features do you consider {likely,desirable} to leak into P5? by blazar
in thread (Sort of) poll: what Perl6 features do you consider {likely,desirable} to leak into P5? by blazar

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.