Phase-change memory is the most advanced high-endurance nvram, with Intel and Micron's XPoint being the most advanced to have hit production. If it had stuck around long enough for the RAMpocalypse, they'd probably sell out their production capacity.

It is the future, and has been the future for almost 40 years already! I bet that's what the hoverboards will use inside their microcontrollers — gotta drive those portable fusion reactors reliably!