But even after Nokia Black update, people have complained about softness issue under normal lightening conditions, and acknowledge that Nokia is ignore its 1 yr old flagship device, because of its total focus on new devices.
I believe the initial feedback on 1020 is that some people prefer a more natural, less sharpened look and it seemed Nokia may have toned down the sharpening/saturation in Black. So it may now look a bit soft. In fact, if you look at the 808's images it tends to be rather soft although rich in detail.
I also wouldn't say that Nokia is ignoring the 920. The 920 already has pretty good image quality for its time, and among its peer. Given the fixed hardware it may be difficult to push any major improvements to it unlike for the 1020. For example, capturing RAW does make more sense for cameras with larger sensor (i.e. 1520 and 1020). Likewise, if Nokia were to develop Lytro-like technologies in future, it would be impossible for them to transfer such technologies to the 1020 simply because of hardware limitations. Granted they can continue to optimize the imaging algorithm (which they did with Black), or introduce new camera apps (which they did with Refocus/Nokia Cam), but you can't expect any major improvements on the 920. My reading of Nokia's strategy is that they are going to focus on new breakthrough technologies, but where possible they will try to push new things to lower devices. Think about it, the 920 did not originally come with Nokia Smart Camera, it was supposed to be a new feature for the 925, but eventually it came to the 920 as well. If there is enough demand for it perhaps Nokia may someday enable RAW capture for 920, but I think at this point the 920 may not benefit too much from that.
What I think all the Pureview devices need at the moment, is the ability to determine the sharpness/saturation level. This is something missing in the 1520/1020 as well. I do think they will enable this option at some point, and likely the 92X will benefit from this.