It seems that AMD is preparing Threadripper based on ZEN2 aka Series 3000. Three model names have surfaced named TRX40, WRX80 and TRX80. And that indicates that AMD is going to make some segmentation towards their offerings.

Threadripper 3000 remains to be massively interesting, but with up to 16 cores on Ryzen 3950X, who is actually going to go for Threadripper. Well, that would be the folks on a workstation, developers, prosumers and render farms.  USB.org posted AMD 2019 Premium chipsets and there has been a recent update:

Model Number: Superset, X570, TRX40, WRX80, TRX80.

TRX 40 and TRX80 might be more consumer and workstation oriented with perhaps some differentiation on memory channels (4-channels /8-channels). The massive mega cores (hey 64c/128t is possible) in all likelihood is intended for the WRX80, which would be a kind of Epyc.

Forum based site ChipHell, has a user with a name Zoo who leaked a statement that Threadripper will have two product lines. One of them will launch this year and the next professional line will come next year. It is unclear yet the core count difference between mainstream and workstation Ryzen 3000 processors. Together with the 3rd generation Ryzen Threadripper processors the platform obviously will provide support for PCI Express 4.0 motherboards for the HEDT segment. Time will tell, but we do not expect Threadripper 3000 for consumers to be released anytime soon.

New AMD Threadripper chipsets pop up in USB-IF database - No more X599 ?