I think technology is already changing the EFL teacher
market. Fewer teachers are needed. With English-language
trends changing from language & culture to global English,
there's less need for real live native English-speaking
teachers. People who are now learning English as a foreign
language can get almost everything they need via technology.
Now most students don't want or need to learn country/culture
specific English, which they used to learn face to face from
native English speakers.