Time-line for Burning Crusade Release?

There's been a lot of speculation as to when The Burning Crusade expansion will be released – different retailers list different release dates, and Blizzard has not made anything public yet.  However, CM Eyonix dropped a little tidbit in the forums today which may provide a clue as to when we can expect to see the expansion hit store shelves,
telling us that they plan to do a talent review for all classes before the release.  With three un-reviewed classes, and predicting six to eight weeks between patches, this pushes the expansion out four and a half to six months.   September or October, anyone?