I think you're right there @Mam89. This platform would compete with the Xeon E-21xx. Quite interesting for homelabbing or SMB.I think you're all arguing apples and oranges.
You want exactly what I want, I have ranted out loud to see if I can generate interest in such a product.If there'd been something like an Epyc 3000 in a mATX format - lots of PCIe capability and support for much more memory being the huge advantages there - I'd have leapt on that in a shot.
ThreadRipper based platforms should balloon too much the price, whereas AMD price for EPYC Embedded series seems to be comparable the consumer AM4 parts (The 8C/16T 3251 was like, 330 U$D, same than R7 1700 on release) but with more SoC features, that is why I find them more attractive. Besides, TR on mATX has pretty much the same issue than single die EPYC Embedded on mITX: Too big for that size to use all its I/O. The X99D8A-2T posted before suits better my tastes.@zir_blazer might be worth looking at Asrock X399m? Has 3 full NVME M2 slots that support NVME RAID and 3 full x16 slots in M-ATX. Reasonably cheap, supports ECC and HCC Threadripper - only downside is it's limited to 64 GB of RAM total (though this might go up to 128 with a new BIOS when 32gb Udimms become more common)