I think the big manufacturers are sitting on technology, making little effort to compete with each other. Deliberately release hardware without all available features so as to keep people waiting and buying new kit.
Instead, we need a Free camera.
This would have a well constructed chassis, perhaps 3D printed. All the parts would be compatible, industry standard and non-proprietary. The camera would be of modular construction, built in such a way that anything which needed replacement in the future could easily be swapped. This would save the environment and money.
The firmware for the camera would be Free, too. You could program it and benefit from enthusiasts working using an open source model.
There was already a successful crowd funding for a digital motion picture camera. It is time to create a Free digital still camera.
What do you think would be the biggest problems for such a project?