Australia won't change their batting side. They only change their side if there is an OBVIOUS problem eg. Phil Hughes couldn't play anything straight in the Ashes. That to me was glaringly obvious, it was obvious to England and the only guys who didn't see it were the South Africans who had no idea how to bowl to him as Mickey Arthur admitted.
Anyway, the only OBVIOUS problems I can see with the batting lineup is:
1) Paine generally doesn't rotate the strike enough early and can put Watson under pressure
2) Watson isn't clicking, seems to be hitting them well but just can't get a big score
2) Hopes can't play spin well and if he gets in early (before 40 overs) we are in trouble
3) White is not sure of his role anymore. Batting at #3 was great for him, but he seems a bit lost lower down
4) Mitch is batting too low! Well, he can't really go much higher except as a pinch hitter I suppose.
Not much you can do about most of those. Tell Paine to look for more singles and hide Hopes from the spinners (the only other place he could go would be opener - and he can't play long enough innings to justify that move). So the ONLY change I would make is to bat White at least at #5, possibly at #4. That's about it. White is a bit like Symonds, you have to give him the chance to click and get that big score so send him in earlier. He just seems to have that hundred making potential a bit more than Ferguson. So Ferguson at #6 for me.