Probably I will upgrade to E-M5 Mark II from E-M5. The reason are:
1. Better EVF like in E-M1
2. Much better video mode in which I see advantage of new I.S..
I'm waiting for Nauticam propose of new housing. Olympus housing seems to be too high due to new flash.
E-M1 with housing was too big for me and video mode was as poor as in E-M5.
I do not see any reason to upgrade from E-M1 for someone who does not make video.