Planned out: ( for 13 legs )
1. Tel Aviv ( I feel they may stay in Israel for the start )
2. Rome, Italy
3. Rural Italy ( spec ~ Maybe Tuscany )
4. Zanzibar, Tanzania
5. Dar Es Salaam, Tanzania ( Spec ) This just makes sense but Kenya could be reasonable
6. Jaipur, India
7. Delhi, India
8. Seoul, South Korea
9. Hanoi, Vietnam
10. Unknown, Vietnam ( Spec ) Probably either Ha Long Bay, Hoi An or Hue?
11. Siem Reap, Cambodia
12. Melbourne, Australia
13. Melbourne, Australia ( apart from S1 there is always 2 legs on the final City )
If we have all our countries then that could be the route. But there may be other factors such as there is only 12 legs or they went to Phnom Penh, things like that.