Gentlemen, every system has its own niche to stay. I am sure the biggest sensor will deliver greater quality, especially for macro, groups, studio, so on. But what is the substitute for fast events, sport, dancing, wedding, airshow, laserhall, racing, journalism, you name it more... D810 with its fantastic AF, and its new incarnations, if any soon, will stay up for its own, for a lot of years ahead. Let us wait a little bit longer, see and compare. THX! LZ