Having followed the price decline of the GX, I will be watching this closely. If a significant fall happens within a short time, may be.
I'm also curious to see how used prices behave. It seems to me that m4/3 pricing is closely tied to sensor technology. New generation sensor cameras seem to typically hold their value for a longer time until something new comes along that eclipses it.
The GF1 held its value for a long time, even after the GF2/3 came out because there was still nothing significantly better on the market. Once Olympus intro'd the Sony sensor cameras, prices fell more quickly.
Similarly, the E-M5 has held its value very well since there hasn't been anything that has done much better. Even after the E-M1 was announced, I haven't see prices dropping too fast because the image quality is relatively the same. It's not just a "premium" model thing either, thinking about how fast prices of the E-P3 fell in just a few months because it used such an old sensor and new ones were right around the corner.
In the case of the GX1, it was using the sensor from the G3... but it was quickly surpassed when the E-M5/E-PL5 came out two months later. Panasonic had barely gotten their premium GX1 into stores when Olympus' E-PL5 offered a similar package with a better sensor and image stabilization built-in.
Now, the GX7 has come out using the newest Panasonic sensor that performs as well as (or better) than the 16MP Olympus is using. Olympus has a while (maybe 18 months) before they step up to a wholly different and better sensor technology. And the GX7 has Panasonic's latest and greatest sensor, which may be improved in subsequent models, but not significantly surpassed.
This is just my interpretation of how the demand side of the m4/3 market is working, but I guess my point is that I don't think the price of the GX7 will be dropping anywhere near as fast as the GX1. Thinking about what else could be released that would entice all those potential GX7 owners, I doubt that either Panasonic or Olympus will release something much better for at least a year or two.