I've been reading about the new Desktop Zen2 based Ryzen 3000 processors and have seen some conflicting information. Some reports out of Computex have indicated the maximum supported memory is 64GB while others have stated 128GB. Intel has been supporting 128GB on their consumer platform since late 2018 (Core 9th Gen Desktop Processors.)
If it will support 128GB, I'd be willing to wait to buy a new system at work to replace my old Xeon with 96GB of ram. I'm not too interested in Threadripper or another Xeon since I'd prefer to keep power consumption lower - and cost too.
BTW, I've been very happy with my 1800x & 2700x at home (both with 64GB of ram.)