I love to make Great images
I'm a Pro, using Nikon D3 and all fast glass, weighs a ton!I also have a G1, a GH2 and a GX1, plus 10 4/3rd lenses, the 7-14 rivals my Nikon 14-24 F2.8. The GH2 with the 7-14 and the fold out LCD allows this camera to go where no Nikon can. I can get pro quality 11x14 prints from the Lumix. The quality does not match the Nikon, but I can always carry the GX1 and a few lenses all day (I'm 62).I predict that the Nikon D6 (???) will be a Full Frame mirror less with a Retina Quality EVF.. the DSLR will be done, once a EVF of this quality is developed. The D6 will have the F mount, so you will not need to spend $25k on new lenses.
The Retina EVF and better 4/3rd sensors will be used by Lumix with more Leica glass available.