If speculation is useless, why bother having this site in the first place? My speculation is that new TBDs, MacPros, MacMinis, and non-retina MBPs will come out at the same time, which Apple has said the new MacPros will debut in December. I believe it will be early, as they will want to take advantage of the Christmas market, and offer corporate buyers flexibility which fiscal year they prefer to make the purchase. They first announced the new MacPro for sometime in 2013, then fall, then December. They can still make true on all 3 of their promises by delivering before 12/21, the winter solstice. It's all a matter of when they can ship all of the devises, and to capitalize on Christmas, they'll want to offer them sooner vs. later.