My theory on the "leaks" are that they are done by intel on purpose as a marketing tactic. I mean it makes sense because everyone has been asking for them to compete in the core race with AMD on mainstream. And like everyone else already knows, AMD wasn't a threat to them until Ryzen so its only logical that they did it. That and the fact this X299 is a disaster, they overthought it, andwent about it the wrong way.
I don't know about you, but there is something about Coffee Lake that gives me bad vibes. Like theres catch to it if you will. I'm willing to bet its "Oh and by the way, you know that Z270 motherboard and 7700k you bought a few months ago, about that.... its not going to be compatible." I know people have speculated it but...