Yongnuo announced a new YN 50mm f/1.8S DF DSM full-frame lens for Sony E-mount (they already have an APS-C version of that lens). The new lens comes with a USB-C connector for firmware updates. The retail price is expected to be around $300. For US pricing and availability check Adorama, B&H, and Amazon. Additional information:
Update - it seems that Yongnuo also has a new flash N685EX-RF:
Via SonyAddict