Sounds like an Upcoming E-M1 Firmware Update
I noticed a comment was made to someone by an Olympus rep of an upcoming firmware update for the E-M1 next month.
With the newest E-M5II and the probability of there being no new upper level model until next year at the earliest, I am guessing they are going to update the E-M1 as much as possible to keep it as viable a purchase option as they can until something new is ready to unveil.
I am guessing a feature like the high resolution option in the E-M5II is not going to be possible due to something mechanical with the required sensor movement needed to achieve the image, although this wouldn't be the first time I was wrong if they did. I am just hoping they give E-M1 users the ability to have the live histogram and dual digital levels on the screen at the same time. With the 7-14mm f2.8, I find myself toggling the dual levels on and off as I meter and compose, more and more.