[Purist]

I've done a more thorough run through of possible venues in East/Southeast Asia and Oceania. I'm only going with permanent circuits this time, and will defer to others as to proximity to large cities.

Anyway, here goes:
Australia
1. Eastern Creek
2. Philip Island
3. Sandown Nat'l Circuit
China
1. Shanghai
2. Zhuhai
Indonesia
1. Sentul
Japan
1. Autopolis
2. Fuji
3. Okayama
4. Sugo
5. Suzuka
Korea
1. Injae* (proposal)
2. Korean Int'l Circuit
New Zealand
1. Hampton Downs* (3.8km loop still under construction)
Philippines
1. Subic Bay

I also saw some that could have potential, but are rather short and/or may not quite have adequate facilities at the moment. Yeah, maybe I am crazy, but then, I'm not expecting any of you to have these circuits on your lists either.
Australia
1. Amaroo Park (fast, if Indy Cars can run Brands "Indy" Circuit...)
2. Symmons Plains (fast, move a few walls back, start on the back stretch)
Japan
1. Tsukuba (simple, fast, good facilities)
New Zealand
1. Pukekohe (very fast, move a few walls back)
2. Ruapuna (simple, fast, good facilities)
3. Teretonga (simple, fast, good facilities)
4. Taupo (known circuit that is up to Grade 2 standard due to A1GP)
Thailand
1. Bira Int'l Circuit (fast, decent facilities, honors great, under-recognized driver)

Fast is relative, and "fast" on a shorter track is different than "fast" at someplace like Road Atlanta. That being said, I would expect current LMP1s to qualify at or above 100mph average at every circuit on my second list. And i could definitely see current LMP1s running Pukekohe with the same sort of average speeds we see at Sebring.

Hopefully, there is some food for thought in here, and anyway, it was fun finding all of these places. Carry on; I really shouldn't hi-jack the discussion quite so much, I know.