Have you taken a look at the “virtual school” phenomenon that is taking root in K-12? Here in Louisiana, the teacher’s union has broken out in slobbering fits over the prospect of government schools becoming obsolete.
It will be a paradigm shift in the history of education.
And LONG overdue. The idea that all kids have the same learning style is just ludicrous. They need to be exposed to the same idea from different perspectives to fully grasp it. Some (like me) can garner it easily from the printed page. Others need to see it (video) or hear it (audio).
I think what you'll see is course content online, and teachers functioning more as tutors for those who need help grasping certain ideas.
Kahn Academy is just the barest beginning.