I don't think they plan to support dual Threadripper, because single Epyc does more or less the same thing without the inter-socket latency or expense of a dual-socket motherboard.
It's effectively two Threadrippers on a single package (2x cores, 2x memory channels, 2x PCIe lanes) for only slightly more than double the price ($999 for 16C TR, $2100 for 32C Epyc).
Cheapest 32 core Epyc is ~USD3200, with 2GHz base clock. I'd much rather have 2 x Threadripper for USD2K with base clock of 3.4. I don't think there are any Epyc features that are relevant for compute loads - like the security stuff or guaranteed x years of support.
Either way it'll be an upgrade from my 4 core Xeon :)
The $3400 model you saw is the dual-socket capable version, the single-socket version (EPYC 7551P) is only $2100. Point taken about the clock speeds though.
Oh I see, I didn't realize that difference. Well if they can build 2CPU Epyc CPUs for 150% of the price, I'll stay hoping they'll do the same for Threadrippers :) Although at that point you're right, the price would be the same as a single Epyc (1k * 1.5 * 2).