Not so long ago, Olympus has disclosed a new mft lens, which will be weather sealed and something like 12-50mm, but won't be really fast, nor have a fixed minimal F stop.
When you put that in line with the fact that Olympus has already said that there will be no other E-XX or E-XXX 4/3 camera, that Olympus has long announced that there would be a pro(?)-mft body, then I think that what we will see is a replacement for the E-420, E-620 etc., aka not really a pro body, but a body big enough to support the 4/3 lens and to focus them speedy enough; one with the small DSLR look, like the Panasonic G, but apparently one with an inovative VF and one able to focus 4/3 lenses needing phase detect AF.
Although I'd very much like to see a "range finder" style body, one to compete with the Sony Nex-7, I think that those who are supposing that they will get an E-P7 (aka one with a new sensor and an integrated viewfinder) are taking their wishes for reality. If only they were right !