Yep with an S, a new entry has been spotted at that everlasting leak, the Eurasian Economic Commission. We don't comprehend just yet what the S stands for; special, super, silent, sleek .. hey, you name it.
Two registrations reveal eight Gigabyte motherboards with X570S in the name, including X570S Aorus Master, Elite, and X570S X Gaming. This could very well be a refresh of the motherboard chipset. Perhaps the introduction of X570S motherboards will see new processors released. VideoCardz suggests that the X570S motherboards might be compatible with AMD Warhol processors and their 'Zen 3+ cores', the successors to the Vermeer generation (Ryzen 5000). Perhaps the S does mean silent, as in passively cooled, no chipset fan?
Update: that S likely is silent and power savings, a new MSI Fanless X570S series has been spotted. MSI is to release at least eight new X570S motherboards which could replace some of the current X570 offerings.
Update: photo's now also have appeared. The S is Silent, passively cooled motherboards. The MSI website shows pictures of two X570S boards, both intended for the lower end of the market. These are the X570S Tomahawk Max Wifi and X570S Torpedo Max. Judging by the name, these models also have an extra large BIOS chip on board in addition to the new chipset. We know both product names from a previously published list of MSI X570S boards. The X570S Tomahawk Max is quite similar to the existing X570 Tomahawk . In terms of I/O, the gray-black board appears to be identical to its predecessor. Its power supply may have had a small upgrade, Wccftech writes, but that is not clearly visible based on the photos.