As a sysadmin, I have an ancient perl (on AIX, Linux has quite a modern Perl), no access to CPAN (well, at least not the modules that need to be compiled) and python is being installed on all Linux, but not on the AIX machines. Nobody can read perl at the moment (ok, a bit, but there are no perlguru's around anymore) thus I can not use modern or other extravagant syntax let alone make complex perl scripts (so instead need to write readable loops instead of using map, for example). Perl6 is not on any of the systems and deemed not production ready for some time to come, if ever.

We still use ksh and bash and awk. So my guess is Perl goes the way of awk. Minimally installed on the system for backward compatibility, used by a few.

Perl is a white dwarf... it still shines but not with the candor of old.