We already mentioned many times that there will be new motherboards and chipsets for Threadripper. Three chipset model names have surfaced named TRX40, WRX80 and TRX80.
The platforms are targeted at a rather extensive minority of the market, workstation, developers, content creators prosumers and render farms. Earlier 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.
On its website, MSI has a promo page where you can win some stuff, and apparently MSI goofed up there, they confirmed a TRX40 motherboard called "Creator TRX40". And that certainly is a new line of products for MSI, but with that suffix, the new chipsets are now confirmed as videocardz spotted.
The entry already has been removed when I double-checked this:
MSI Confirms Existence of AMD TRX40 based Motherboard for Threadripper 3000 Accidentally