Defending champions Melbourne Renegades are set to finish last, while Sydney Sixers will finish at either second or third place.
Having thrashed New Zealand inside four days at Perth and Melbourne, Australia will now host New Zealand at Sydney.
India and Australia were the best teams, Labuschagne the only one to get a thousand runs, and Cummins the only one to get 50 wickets.
Stumps, Day 1: Australia 257/4 (Smith 77*, Labuschagne 63; de Grandhomme 2/48) vs New Zealand.
Sydney Sixers had won the inaugural edition of the BBL, in 2011-12, and had come runners-up in 2014-15 and 2016-17.
Australia face the unknown against a young Pakistan side in what could be a riveting first Test.
Stumps, Day 3: England 294 (Buttler 70, Root 57; Marsh 5/46, Cummins 2/76) and 313/8 (Denly 94, Stokes 67; Lyon 3/65) lead Australia 225 (Smith 80; Archer 6/62, Curran 3/46) by 382 runs.
Stumps, Day 1: England 271/8 (Buttler 64*, Root 57; Marsh 4/35) vs Australia.
England have won 42 Tests at The Oval and lost 22. Their win-loss ratio here (1.909) are their 2nd-best at home. Australia, on the other hand, have won 7 and lost 16, and their ratio (0.437) is the worst anywhere in the world.
The battle for the urn may be over, but WTC points are still at stake as England and Australia go again for the last time this series.