The simplest way to deal with that would be allow you to use Netflix in territories other than the one your credit card is registered to for only a certain number of days each year. Until it happens nobody will know what the measures will be though.
According to a recent piece in Wired, they have 20M+ customers in China using VPNs - which is a lot of revenue - though given recent crackdowns there on VPNs and the terrible connectivity outside the country I'm not sure I believe that's how many are really active.
Couple of other interesting recent articles on whether Netflix can maintain its current success:
http://www.nytimes.com/2016/01/14/te...t-netflix.html
http://www.adweek.com/news/televisio...casters-168985