Don`t suppose any camera manufacturers are listening, but how about the following:
1) switch to 3:4 ratio image from the current 3X2 - after all this is what has happened in medium format and micro four thirds - if you kept to the same image circle - no problems with current lenses.
2) how about a rotating sensor - surely they can find a way to align it perfectly after turning it 90 degrees - this whole business of turning a camera on its end is just rediculous. It`s faster and safer and simpler for controls to rotate the sensor - sure you`d need a bigger pentaprism (if you stick with that), but 4X4 isn`t much bigger than 4X3 and even 3X3 vs. 3X2is only 33% more.
3) how about solving the expose to the right problem - why should I guess from a tiny screen whether I have overdone the highlights - couldn`t the camera check just how much brighter the highlights are (ie. hopeless or not) and just how big they are and couldn`t I specify how large an area I`m willing to let go pure white in a given photograph - and can`t we assume using raw and have the lcd show the clipping for raw that isn`t retrievable - perhaps flashing highlights in one of three colours depending on whether one, two or three channels are clipped. Surely the technology is there to help us (but not replace us).
4) would it be so difficult to put an infrared receptor on the back of the camera so I can use a simple, small cordless remote - after all point and shoots have had it for years - come on guys!
5) I suspect we are going to see more and more focus blending in the future so how about making it easier - with automatic multiple images with appropriate focus change between each, based on the near distance and far distance desired, and the f stop. You could even time the exposures based on hand holding (asap) or tripod (how long does it take for vibrations to dampen at a given focal length).
6) how about getting the lcd image to my iPhone or even better iPad simply, painlessly and accurately, no wires, no router. It can be done now with accessories like eyefi but what about building it in?
7) is there really no way to keep noses from LCD screens?
Are we really stuck with the same overall design of slr's present since the 50's? - I loved the tilting viewfinder (not LCD on my Sony 707
8) from using the viewfinder on a Sony Nex-7, are we not ready for electronic viewfinders? Already they are better in low and medium light - we just need to fix the daylight problem - dynamic range, colour etc. - but we need fast refresh and short blackout times for this to work.
Anyway, just my daydreams. Michael Reichmann has been beating the drum for a mirror lock up button on Canon cameras for at least 7 years and still no action - guess they are waiting for when there are no mirrors in any cameras.