Just had another thought, along the lines of the Speedbooster .... It would be kinda funny for someone to come up with a mFT or Nikon 1-mount to Q adapter. mFT and Nikon 1 bodies are kind of "selfish" in that they can use almost everyone else's lenses, but you can't put mFT or Nikon 1 lenses on any other bodies since the flange distance is so short -- but they could work on a Q!
Sony E-mount lenses wouldn't offer any advantage over Pentax APSC lenses, it would be more about bragging rights. (Take that, Sony fanboys!
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The mFT and Nikon 1 systems are a bit closer in terms of usual focal length, size, and weight to the Q system, so those would make a little more sense than adapting APSC lenses. It should be quite easy for Metabones and the other manufacturers to create a focal length reducer to go from mFT or Nikon 1 to the Q mount.
One problem, I suppose, is that the mFT lenses require an active electronic mount in order to power the focus-by-wire system. And one problem with the Nikon 1 system is that it doesn't have many lenses, so there wouldn't be much of an accessible market. So maybe this is a dumb idea .... Threadjack over.