There's rumors floating around that Chinese firms will soon be bringing new PCM storage solutions to the datacenter market. Not nearly as good as 3dXPoint/Optane, but should nonetheless be lower latency than Flash and much better endurance (DWPD).

If the pricing is competitive it will easily be replacing DRAM for many lower-level uses, thanks to its support for better PCIe standards (5.0 at least, while aftermarket Optane is stuck on 4.0).