In the wiki it was mentioned that they started to pick it up again for Last of Us.
Damn I'd love to use it in Emacs. I never had to use Emacs and stopped dreaming about it or vim, but would love to learn it, and the best way to learn it is to be forced to use it for a few weeks.
It would also be interesting to read the code for debugger, linker and compiler.
Naughty Dog had somewhat famously written Crash Bandicoot and Jak and Daxter using Lisp although they don't appear to use it these days
https://en.wikipedia.org/wiki/Game_Oriented_Assembly_Lisp