Looks like it should soon be available. Here's info from B&H Photo. I know nothing other than what I read here:
https://www.bhphotovideo.com/bnh/controller/home?O=&sku=1281679&gclid=CM-7hKSN8NECFc63wAodwqoOWA&Q=&ap=y&m=Y&c3api=1876%2C72123861482%2C&is=REG&A=details