Picking a guy just because he's young and helps build for the 'future' is a very English mentality to go in with after losing a series. Pick the best players, and back them to perform. If any of the batsmen are dropped (which I think would be a little harsh, as I don't think they've done badly, even Hussey managed a superb knock in that final innings) then I'd bring in either David Hussey or Brad Hodge, guys that are proven performers and have been doing it for years, not a 1 season wonder like Ferguson.
I don't think Katich and Watson will last long as an opening pair though tbh. I see Hughes and Jaques stepping up to the mantle in the next year or so. Think they're definitely the best opening partnership to take Australia forward.
*Waits for inevitable 'Brad Podge' post from Hooper.*
By the time we return to Australia in 2010 I don't really think the Australian team will have changed much. I see us going up against:
Hughes
Jaques
Ponting *
Clarke
Mussey/Watson/Dussey/Ferguson
North
Haddin +
Johnson
Hauritz
Siddle
Hilfenhaus