After a bunch of research (I have no idea how you guys do this and still manage to do all the other things around here), here's what I came up with for leg 2.
Using simple geography, TPTB would probably wanted to stay along the China Sea/Eastern Pacific. I doubt they would go to China after spending three legs there last season, but then again I thought that about TAR 14 being in Russia and, what do you know, people are running near-naked in Siberia. That being said, here are some possible destinations for our teams. The time indicated is how long they have to run a leg, with a 12 hour pit stop already factored in (obviously extended pit stops would impact this greatly, as would hours of operation/transportation bunches).
From best to worst:
Seoul - 33h 50m for racing
Taipei - 31h 40m for racing
Manila - 30h 20m for racing
Hanoi - 28h 0m for racing*
Kuala Lumpur - 27h 45m for racing
Singapore - 26h 35m for racing
Vientiane, Laos - 26h 10m for racingBandar Seri Begawan, Brunei - 25h 55m for racingDanang, Vietnam - 23 h 0 m for racing
Kuching, Malaysia - 21h 45 m for racing
Australia is possible, but it would be a very tight squeeze (we're talking 8 hours for 10 teams to complete a leg - possible, but hard if someone flies off the rails).
I like Vientiane and BSB as destinations; we typically have a new country in Asia each year (with the exception of TAR 14, which felt the need to have 6 legs in Asian countries previously visited, 5 of them in cities previously visited
).
*Especially for peach - The timing for Hanoi assumes that teams enter and leave Hanoi via airplane. A second option has teams flying into Hanoi and taking a train all the way to HCMC. Nothing would be done in Hanoi, but it would be either an exercise in working the airport/rails or a way to bunch teams up after a difficult first leg. Luckily for teams, there are sleeper trains available every day. Whether TPTB is willing to spend the extra money or willing to not have teams suffer in the hard seats is a mystery. An example of this would be:
JL5135 1100 1435 NRT HAN
SE5 (train) 1900 410(+2) Hanoi HCMC
Thus, HCMC would be leg 2 and we'd have to go from there. While I like that option a lot, I think the best bet is either a second leg in Japan or a leg in the Philippines (since the long amount of racing time allows the teams to travel to different islands in the archipelago and back)).