It ay take a year or so before Panasonic gets these out as separate lenses for purchase. Heck, look...even the greatly improved 14-42 II kit lens isn't out yet (at least in the USA) as a separate lens (and the separate lens has the metal mount, whereas the kit lens that comes with the GF6 and G6 has the plastic mount). The only 14-42 II's you can buy separately right now are those that new G6 and GF6 owners are selling because they didn't want them (with the plastic mount).
But I doubt the owners purchasing the GM-1 will sell their 12-32's because it's the main feature of that camera. So good luck trying to find one. Perhaps in a year or so. Panasonic has a heck of a time providing product in a reasonable amount of time.