You know that pyramid powers some of the most important infrastructure for python? Like new version of PYPI (https://pypi.org/)? And lots of big organizations use it - like Mozilla or NASA, sites like Reddit still use pylons.
IF you think it went the way of the dodo, I'd suggest doing a bit of better research before predicting the future :D Because IMO you are seriously off here.
I'm talking about the trend of build-your-own frameworks, not the software itself. Heck, there are enough sites out there still using Zope, MASON and Aolserver.
Pyramid is feature complete as a framework in my opinion - with defaults requires less thinking vs. lets say flask - the resulting applications will be more elegant and better organized (partly because it doesn't use globals eveywhere). The glue is quite good nowdays.
IF you think it went the way of the dodo, I'd suggest doing a bit of better research before predicting the future :D Because IMO you are seriously off here.