I never said it would still be Perl 5.8, or even Perl 6. But there will always be some derivative of Perl, I'm quite sure. We may design higher level languages to solve overly complicated problems, but Perl will be a better fit for the day-to-day small problems. You don't need to program an AI to write complex algorithms to automate your data archival routines. Nor do you need all that fancy stuff to do something simple like an HM (Holographic Messaging) client. There will always be a perl, just like there will always be some derivative of shell.
And besides... you just can't do a proper JAPH in any other language. :-)
Linux, sci-fi, and Nat Torkington, all at Penguicon 3.0
perl -e 'print(map(chr,(0x4a,0x41,0x50,0x48,0xa)))'