I think it'll be 3-1 to Australia
In a perfect world it would be 5-0 to England, with Flintoff and Vaughan scoring centuries out of their a***s and Anderson, Sajid Mahmood and Flintoff (in between bowling Lancashire to the quadruple of the championship Div 2, C&G, National League div 1 and Twenty20
) spearheading the England attack which tames Hayden, Ponting, Langer, Martyn, Gilchrist and Clarke, who only score the one century between them whilst Glenn McGrath shows them how to do it with 2. The Aussies go home dejected and a long period of England dominance. In the end, Australia get so desperate they get the scummy Chris "I think I'm bigger than Lancashire so when they sack me I take them to court" Schofield to go over there and play for New South Wales whilst waiting for him to qualify for residency so he can play for them. However, he gets sent to prison after it being found out he was an illegal immigrant and lives torturously ever after.
After that little bit to show mr Schofield that NOBODY is bigger than Lancashire, the Ashes would be contested competitively and fairly forever and ever. The End