Tim,
Heading to Japan this September for a trip (hopefully) and many maybe surprised to note that Japan already has the second most courses in the world at over 3,000 already. Will tick off 10 this coming September. Membership is very expensive still and almost exclusively for Japanese. They still travel quite a bit to Thailand, Philippines to play golf.
I would anticipate a few new courses now that Hideki is coming back as Masters champ perhaps.