The leaked images of the Panasonic GF5 look quite real and I would bet the GF5 is in the pipes. We recognize the GF3 filiation with a better looking body as 43rumors said. They have been warned of these images by a mysterious asian source of the site nphoto.net which also says that the Lumix GF5 ISO performance would be as good as the Canon EOS 7D level. I would believe that as Canon’s sensors are outdated by Sony CMOs technology and today, Panasonic showed us that even with an old sensor and a rather small surface, they can do pretty good : read the Panasonic GX1 bullet review.
There is a European press event scheduled on April 5th. We should meet the Panasonic GF5 that day.