The rumor is almost confirmed that Panasonic G5, Panasonic LX7 and a new Micro 4/3 Lens Coming Next Week, no details about the specification is currently available.
Based on previous rumors Panasonic G5 may use the same G3 16 Mp sensor with advance image processor, Panasonic GH3 will arrive on September, 2012 (Photokina)
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via – 43Rumor