1)In my opinion the biggest advantage is floating chart, you may stop or continue education at any moment, so you will never lost any opportunities because of learning. I think that advantages outweight drawbacks, because we live in IT era, so we must upgrade not only ours technologies, but our learning system too.
2)This is an extremely controversial point, but i still think, that digital technologies will make education more accessible, because it`s easier to find the good computer than a qualified teacher
3)I think that we will move to a more digital model in 5 years, because speed of progress is incredible. Traditional classrooms will stay only for poor countries.