mat33

I agree 4k is unlikely although maybe they could do it via hdmi out like the sony a7s? In any case it would be a good move by olympus to put out a major firmware update to keep their flagship model in the limelight when other manufacturers release new models (I am assuming olympus won't release an e-m1 successor quite so soon as to recoup r&d costs)

With my E-M1, the sound of the stabiliser is pretty similar in still and video mode. There is a very slight crop when the stabiliser is on versus off in video mode, so I guess there is possibly some additional electronic stabilisation going on. However the crop is so small there would seem to be no way that this would account for all of stabilisation you get?

I haven't seen a direct comparisons of the E-M1 vs E-M10, but my understanding is the E-M10 use electronic stabilisation in video to compensate for only having 3-axis sensor stabilisation so it would stand to reason that the output may be a bit softer etc.

I have a GH3 and E-M1, and for your intended use I would definitely go for the E-M1. A lot of people will say it can't be used for serious work, which is wrong in my opinion. Like all of our tools it has weaknesses that we have to work around, but it has some major strengths-not only the amazing stabilisation on all of your lenses but great dynamic range, great ergonomics and build, excellent EVF, good skin tones and good colour out of camera. When Canon introduced video dSLR with the mark II, everyone complained about 30p but it didn't stop us utilising the strengths the camera offered. With the E-M1 most of your shots are usable without any post-stabilisation, you can shoot faster and can pull off camera moves handheld that you would not usually even consider with other cameras. Would you use a E-M1 on a studio shoot or narrative film, when you have time and money to set-up a shot etc -no but for solo shooting, run and gun, travel-documentary type work, I think its a great option.