I'm not sure a separate Perl 6 section would be useful. It seems orthogonal to the existing section structure.
Do you have a question about Perl 6? Use Seekers of Perl Wisdom. Have you discovered something interesting you'd like to share? A writeup in Meditations would be appropriate. Of course, I'm waiting for those first Perl 6 entries in Code and Snippets. ;-)
I'm with brother Masem on this one. Better to just put "Perl 6" in the node title. Although we'll probably regret that five years from now when everyone's running Perl 6. (FAQ entry from 2007: "If you have a question specifically about Perl 5, please indicate that in the node title. Not many people run it any more.")