I will update with the LPV changes, was planning on doing that, but had forgotten, so thanks for the reminder. As for turbulence. I believe Epic went with their own GPU particle solution in the end so as to remain GPU and OS agnostic. But Turbulence now encompasses more than just GPU particles, it also includes what used to be called FlameWorks (Please correct me if I am wrong here).
Will try to merge Turbulence and WaveWorks as well.