The rumored specs for the upcoming V2 of the EM1 seems to be promising a lot, and we can all only hope they are true. I am really torn on whether to upgrade my EM5-MK II, keeping my EM1 as the 2nd body, to now include the new version or go in a different direction. Let me explain. I shoot 2 systems, M4/3 and Nikon FF. I don’t mind having 2 systems, as I have had my Nikon gear for quite a long time and built up a substantial set of lenses and accessories. I use a D800 for almost all of my landscape, birds in flight, surfers and air show shooting. The faster Nikon AF with far better tracking just results in at least double the number of keepers vs. my M4/3 kit, and most times triple the number when shooting BIF. With the D800 I can use the 1.5 crop mode and either my Nikon 70-200 VR f/2.8 or 300mm f/4, plus the 1.4 or 1.7 TC if needed for really long reach, and obtain an excellent 15.3mb photo, 4800 by 3200 pixels, not that different than with the M4/3 with its 16mb result. My M4/3 system is used for general shooting, my portrait work (love love the Nocticron and Oly 75mm f1.8), and airplane related travel. I just recently added the Oly1.4x TC to my 40-150 f/2.8 Pro and it has done a lot with regards to reach without the AF really being affected. A couple of weeks ago I used this combo for a local surfing event where the sun was at my back for most shots, thus the surfers front lit, and the results and keeper rate was the best I have had, more than 85% with the C-AF. But when I shot the opposite side of the pier, where the light was side lit or behind, the rate dropped to less that 50% keepers. What I am so torn about is the new Nikon D500. Its AF and tracking are simply the best of any camera right now, this has been confirmed by almost everyone who uses it, even non-Nikon users. A couple of the pros I follow have all stated that they now rarely have non-keepers due to AF or tracking, quite remarkable. My D800 is only 5 frames per second and the C-AF, while very good and way ahead of M4/3, is now 2 generations behind what is available with the D500. The issues between the EM1 V2 and the D500 are these: 1. Both are in the 20MB pixel range, the D500 is 20.9MB and the EM1 is rumored at 20MB. Both have 2 card slots, which I really appreciate. Both can shoot 10 frames per second, though the D500 for a really long time, but that is non-issue for me as I rarely hold the trigger for more than a second or 2 when on C-AF. 2. The EM1 requires a new battery system, and thus another charger. Frankly it is the EM5 MKII that has the most battery drain. I am able to take 600-700 shots all the time with the EM1, yet barely get 300 with the M5 MKII. So now add an additional charger box and batteries to the M4/3 kit, which I don’t see a need for. The D500 uses the same battery as my D800. 3. If the EM1 V2 C-AF is improved to at least be acceptable for BIF, say even 40-50% keepers vs. 20% or less now I get, I would want to add the Olympus 300mm f/4. Thus the cost becomes $1,500 (guessing) for the body and $2,500 for the lens, or $4,000. With the D500, I only need the body at $1,995, as I already have 2 excellent long range lenses, plus the 1.4x and 1.7x TC’s. 4. And YES, I really don’t like the flippy screens of the EM5 MK II, much preferring a tilt only screen, which I use all the time. To hear the EM1 update will have this is a disappointment. I keep a RRS L bracket full time on my EM1 and it works just fine with tilt screen. This would not be the case if it was a flippy screen, the side L part of the bracket would have to be removed every time I wanted to use it. Having the L bracket for tripod work is way more important than any flippy screen to me. (For those interested if I upgrade to the new EM1 body, the EM5 MK II is the one to go for 4 reasons: Terrible battery life, the slow start up time vs. the EM1, the flippy screen and the lack of the dual AF system. I find the EM5 MKII does not focus nearly as well as my EM1 with my Nocticron or 40-150.) 5. The only negatives I can come up with on the D500 is the lack of IBIS, which I love on the OMD's, and the touch screen is limited with AF implementation. But with most of the action type shooting the new body is intended for, shooting at 1/250ss or above is not an issue as below that you get subject blur anyway, something IBIS can’t help with. The Nikon 70-200 f2.8 does have VR, but my older version of the 300mm does not. There is a new updated and much smaller version of the 300mm f/4 with AF, but it is $2,000 and don’t see a need for it. 6. The size/weight advantage of M4/3 isn’t as great as you would think once you get into the larger lenses. The biggest difference is Oly 40-150 f2.8 (72mm) vs. Nikon 70-200 f2.8 (77mm), the Nikon is 2” longer and 1.4 pounds heavier, but Nikon 300 f/4 is actually a tad bit smaller than the Oly 300mm f/4 and weighs a few ounces less, and both use 77mm filters. So the Nikon weight penalty for this kit is about 2 pounds total including body, which is not much at all. Size-wise both kits will fit in the same Pelican 1430 vertical box that I will use to work from when in my canoe or around water. One lens can be kept mounted to the body in this waterproof case. Other venues I will use my Lowepro Magnum 200AW which also allows 1 lens to be kept mounted vertically in the bag. Any D500 owners out there who would care to comment?