I would guess, being "back" over the past few months, and my memories from the 2004-6 era, that the amount of quality discussions seems to be diminished, and there seems to be fewer SOPW questions than I remember before. Thankfully many of the extraordinarily talented people that make this site great are still around.
I think fewer SOPW questions is an inevitable result of Perl not being the cool kid on the block anymore.
Regardless of that status, Perl is mature and stable and definitely has it's place amongst the giants like Cobol, Fortran, C, and the more recent additions of Java, Python, etc. So, I expect that Perl will be with us for a very long time to come as it's use tapers off in a long slow decline.
-Scott