It wouldn't be realistic for panasonic to improve their colors and fix certain issues?

It is really very low level thing, and more hardware and low level processing related.

While I agree that ML HDR is useless in lower framerates (for certain shots), with 120fps it would be very useful. I'm already able to get a good image without any ghosting.

I doubt it, it is just wrong approach.

@P4INKiller

I specially asked for realistic software changes :-)
ML HDR is useless thing, btw

OK, I think we have enough.

I'll try to copy all that seems real and make a list and pass it further to make Japanese version.

Tethered shooting of stills (lightroom), better yet control of focus/zoom/exposure via USB (electronic follow focus), best of all: live view via USB (remote camera operation) that would allow for so many things!

When in shooting RAW, display histograms of the RAW data, not the JPEG preview. Ideally do this with the live histogram too; if they don't want to make the live histogram 3-channel (which might take up more space), then display max(R, G, B).

Separate video and still shutter speeds. I hate going back and forth from shooting stills with S to video and having to remember to change the #!@ shutter speed. Allow angles for video shutter speeds, so I can just pick 180 degrees and have it do the right thing for all output frame rates.

Settable minimum shutter speed for stills. That would allow more natural use of A mode in auto-ISO with possibly moving subjects, where you want a certain minimum speed to freeze motion. No, iISO doesn't count; it's too easy to fool it. This would also be useful for adapted lenses where you need a certain minimum speed for hand-holdability.

Faster delete option for pictures (maybe option for no confirmation, or something quick like a double press of the delete key).

When in M mode with what appears to be a dumb flash on the hotshoe, don't limit the shutter speed and do "fire" the flash, regardless of whether the shutter speed is beyond the camera's rated sync speed.

Electronic follow focus capability would be excellent. Right now you have to hope that the camera does the right thing when refocusing while recording.

4:3 aspect ratio support for avchd... 1920x1440 resolution.

2.33 guideline display for 16:9 aspect ratio.

Fix the noisy ISO bug.

Redesigned eyecup for EVF... so that we can attach a bigger rubber eyecup easily on it.

How about a depth map? It has been demonstrated but no one has implemented it yet... extract your subject without green screen.

Galaga is the shit.

The use of external "Wifi" created profiles for shooting video/stills would be a good opportunity for the GH3 to emulate some of the very popular app based cameras such as Hipstermatic/Instagram, although a bit gimmicky on a phone, these apps can produce some interesting stills, and the potential for video and stills would IMHO bring more people to the M43 if these features were available on this type of camera. In the future app based cameras are likely to become very popular as the phone market has shown, The potential of using a GH3 alongside an app that could add a wide range of effects may not be what professional cinematographers/videographers are looking for now, but if panasonic chose to include these types of effects as an option, I don't see how this could adversely effects the M43 system, but could potentially bring a huge market share of budding phone photographers into Panasonic's fold.

@Vitaliy_Kiselev

Finishing the game unlocks 100fps mode.

+1 to adding a video game in camera, like space invaders or tetris. +1 to all other realistic requests!

This should not be difficult to do.

All things on earth are not difficult to do :-)

Inexpensive flashcubes.