TL;DR of my post above:
Potential TAR Australia 6 Route:
Leg 1: Sydney, Australia → Marrakech, Morocco (10 teams, Group A)
Leg 2: ?, Australia → ?, Morocco (10 teams, Group B)
Leg 3: Chefchaouen, Morocco (18 teams, Merge)
Leg 4: Chefchaouen, Morocco → Athens, Greece
Leg 5: Athens, Greece → Santorini, Greece
Leg 6: ?, Greece
Leg 7: ?, Greece → Konak, Turkey
Leg 8: Konak, Turkey → Alacati, Turkey
Leg 9: Alacati, Turkey → Bornova, Turkey
Leg 10: Bornova, Turkey → ?
Leg 11: ?
Leg 12: ?
Leg 13: ? → Bogota, Colombia
Leg 14: Bogota, Colombia → Guatapé, Colombia
Leg 15: Guatapé, Colombia → Cartagena, Colombia
Leg 16: Cartagena, Colombia → Belize City, Belize
Leg 17: Belize City, Belize → Caye Caulker, Belize
Leg 18: Caye Caulker, Belize → ?, Belize
Leg 19: ?, Belize → Mérida, Mexico
Leg 20: Mérida, Mexico
Leg 21: ?, Mexico
Leg 22: ?, Mexico → Perth, Australia
Leg 23: Perth, Australia → Fremantle, Australia
Leg 24: Fremantle, Australia → Broome, Australia (Finale)