This includes the good lenses L, they say. And rightly so. Due to the technical possibilities of the camera bodies are here but compromises possible. I own two 5D MK II with two 35mm fixed focal length and 100mm, neither of L - and for good reason: small and light, and when a human skin, replaceable. However, in the camera with still 11 to 12 MP M-setting make both lenses to 3200 ISO sharp, steady photos with no waste. This compromise because I prefer agiere with fixed focal lengths in Life / action photography, but the 35er and 85er L or 100 equal to one and a half kilos and 2000 euros more expensive.
For me the 5D II everything to be on board and must be as I liked. The battery lasts forever. The housing is stable. The viewfinder is excellent. The image quality has me to ISO3200 everything needed for magazine photos. Nice that the white balance rather too warm fails and artificial light is really artificial light and is not neutralized. Nice that the body has the weight and size, as it sees fit in the hand and which also does not need a stabilizer. And in 2014 to be able to perceive a camera without compromising the modern after all this time still speaks for the quality.
So what can seriously screw Canon to develop a future-5D? I would say, in my case: folding screen, because so diverse ways to open (over head, on the floor or in object photography). A second CF or SD slot, which was already realisert. Better production quality at sensor - the 5D II sensor will be different, some tend at high ISO to hot pixels. Better processing quality in detail - with one of the 5D II is the USB loose and there soldered on board, extremely expensive to repair. A screw for - quite dated but proven yet - cable release. A built-in airbag, you should let the camera but fall times. (Well, that last one was a joke. Or not? Were not that nice? "Treasure fang!" Oops ... well, never mind, hovering so the pillow)