We are now almost confirmed that the upcoming Panasonic GX8 will feature 4K video and a ultra compact body design similar to Panasonic LX100 camera, however we have a published a Panasonic upcoming cameras road-map back on May 21, 2015… see here you can see clearly that we have predicated GX8 will carry 4K tag.
No more specification available at the moment but will update you soon as we get any new information.
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