The shipping of the Voigtländer VM 12mm f/5.6 Ultra Wide Heliar Aspherical III lens for Leica M mount is being delayed. The new release date is November. US pricing is not yet announced, but the Voigtländer VM 10mm f/5.6 lens is priced at $1,099 and is currently in stock.
Additional information on the Voigtländer 12mm f/5.6 lens can be found here.