i think if Perl6 becomes popular enough, most perl5 devs and shops will just move to perl6<p>while perl6 is truely a new languages not an upgrade to perl5<p>perl5 devs for a while have been under pressure to make perl5 more popular, using a popular language adds a padding of security, a cushion, perl5 devs are surely hungry for this<p>and if you like perl5 you will love perl6 as they seem to share the same values 
both languages that are syntax heavy, and languages that work the way you do, instead of forcing you to think a certain way .. like say functional languages<p>Perl6 is probably the complete opposite of say .. Haskell, but I believe in a good way ... it will be popular, i think
it will be an agile language .. and many devs will love the flexibility