Reading this thread, and contemplating the topic, it seems very possible that China could be an area the JWS will focus on. There are a lot of new capitalists in China, and lots of bux.
Last year, when I did some research, I discovered the Society (TM) was encouraging travel to Israel. Through use of travel visas, JWS would spend whatever time (6 weeks? I don't know Israeli regs) doing 'undercover' preaching work. This was extremely dangerous, duh, it's ISRAEL. There was another country I read about, was it Malaysia?, where JWS were deported for being discovered doing the same activity.
KH's are in private homes. That is one way the law is subverted; ie, breaking Caesar's Laws (TM) in the name of Theocratic Warfare (TM). It could be the same in China.
It would not surprise me at all, to find out that the same kind of illegal and deceptive preaching work (and dangerous! think of what has been happening in Tibet since the Chinese takeover) is being 'encouraged'. Student visas would be a great excuse, providing 4 years of opportunity, it boggles the mind.
____________________________
Here's a viable set-up for JW subversion of Chinese laws. What about TESL teachers? TESL is a 2-year certification, with only HS requirement for entry. Imagine JW families in China, sponsoring a young TESL teacher who is also JW - all undercover... running a TESL school for Chinese children of wealthier families. Works for me.
_____________________________
Time to do a bit of looking around the net, to see what they are saying on travel blogs and such.