With the introduction G2 by Panasonic, it looks like an admission that they do not have any improvements to their original G1 sensor.
Since Olympus are dependent on Panasonic for sensors, there is little hope that they can do anything other than making EP to EPL and such.
What happened to Fuji's purported cam?
Is the future of m4/3rds tied down by Panasonic's "starry sky" NMOS sensor?
BTW, here is a blog that is related to this post: