Just to try and ease your worried minds, I don't think [ JK ] was trying to say that Site Integration wasn't going to go as planned. While I wasn't part of the conversation (and Ms. Motou is more than welcomed to come in and correct me), I'd be willing to bet that his intention was merely that they're not sure how, or how much, the plotlines will be integrated. It seems a number of people are taking this as a certain negative, when I'm guessing all he was aiming to communicate was uncertainty.
[ JK ] caught a little flak, not too long ago, for posting a number of zOMG! concepts threads - and a number of users were disappointed to find out that those concepts were neither coming soon, nor even definite additions to the game. I think what [ JK ]'s trying to do here is to avoid getting anyone's hopes up too high, while the future is still so uncertain. The community gets really excitable whenever the devs start announcing 'plans' - and I think [ JK ]'s just learned his lesson about letting the expectations get out-of-hand, too fast...