The previously reported Laowa FFII 15mm f/5 Cookie full-frame lens for Leica M-mount by Venus Optics should be announced soon (check the Laowa store and their website) – the lens is already listed for sale at an Australian retailer:
Update: new Laowa FFII 15mm f/5 Cookie lens (for M/E/R/Z/L mount)
Via PhotoRumors