What MBA teaches you is management of making all complex problems to simple understanding in business. In other words it is a management of mismanagement.
MBA education is not a rocket science rather it can be called a social behavioral science. Whatever business practices and market dynamism is absorbed that is being imparted as knowledge in form of case studies.
It is only MBA education with which even specialized areas of medical or engineering can be managed successfully because of the fact that fundamentally MBA education is an essence of more than common sense.
MBA education will continue to grow but with a constant change of adaptability so that future managers are satisfying customers with innovative ROI initiatives.