I was going mostly on info posted on another blog with links to other reality-following websites. Kwame (Season 1) is raking in the money on the lecture circuit. I don't think anyone has kept up with Jenn M who is probably back in some law practice. Tana is selling up a storm as it seems to be her one true talent in life.
Kelly, IIRC, has already left and Kendra got out of her contract although I saw her in one of the crowd shots last night looking thinner and never smiled (you'll see her near the Yahoo exec announcing the donation). I can't honestly recall if Bill had been talked into one more year or if he was leaving too. Wouldn't surprise me if their $250,000 salaries get cut drastically after the first year too. Bottom line is that these apprentices don't have much shelf life and the runners-up seem to be doing better thanks to being available after all that exposure.
BTW, Martha Stewart has been publicly blasting her candidates as "opportunists and exhibitionists" and regrets that she will have to hire one of them. It's down to Dawna, the dull but efficient magazine publisher or Bethenny, the frantic food chef.