Asus working on AMD X590 and X599 motherboards to cater to the Ryzen 9 3950X and Threadripper 3000 series

We've been hearing rumors about a possible AMD X590 chipset with additional PCIe lanes targeted at enthusiast Ryzen 3rd gen CPUs such as the Ryzen 9 3900X and the Ryzen 9 3950X. Now, sources at Asus have confirmed to Videocardz that there are at least two X590 motherboards under development. 

Internal Asus documents apparently point to the existence of the Prime X590-Pro and the ROG Strix X590-E motherboards. While this confirms that the boards are in development or testing, there is no guarantee that these models will see the light of the day. Not much is known about the changes coming to the X590 chipset apart from the fact that it will add another four PCIe Gen4 lanes. We could also see higher power draws in this variant compared to the X570. There is a good possibility that AMD could be aligning the launch of X590 with that of the Ryzen 9 3950X in September.

Videocardz also reports that Asus is working on a new Zenith II Extreme motherboard. The Zenith I Extreme was based on the AMD X399 chipset that supports the AMD Ryzen Threadripper HEDT CPUs so there's a strong likelihood of the Zenith II Extreme being based on the X599 chipset for the upcoming Threadripper 3000 series. AMD has been pretty mum about the upcoming Threadripper series so we do not have an estimated launch date at this moment.