Meike officially announced the previously reported 50mm f/1.8 full-frame autofocus lens for E/Z mount. The pre-orders for Sony E-mount are now open and the Nikon Z-mount version is currently in stock (international shipping available). The lens should be soon listed for sale also at the official Meike Amazon store.
Additional information:
Meike to announce a new AF 50mm f/1.8 full-frame autofocus lens in January (Nikon Z/Sony E)