News Gigabyte Accidentally Lists Four TRX40 Motherboards for AMD Ryzen Threadripper 3000

Besides the Gigabyte 4x4 AIC supporting PCIe 4.0, are there any other vendors offering a comparable upgrade to their 4x4 AICs e.g. ASRock and ASUS both have Gen3 4x4 versions? Support for "Auto Detect" should make installing an OS a lot easier.