I've had a similar "what if" thought to this guy's May 21 2011 theory. I've never even put enough stock in my thought to even really research in the Bible, because I know that trying to predict Jesus' return is an effort in futility. But I've thought "what if" the 7,000 years is a prediction of how long the earth would last. What if it mimics creation week. So there would be 6,000 years of our normal world and the last 1,000 years (the Millennial Reign) would be "restful" just as the last day of creation week was.
Anyway, I know it has very little merit...totally a what if. Anyone else have what if thoughts they've had?