Computer Science has become a lot broader nowadays, all the other fields are trying to emerge computer simulation for complex problems and efficiency, including economics, chemistry and biology, this is known as scientific computing, but most of the time you can only find these kind of jobs in highly developed countries and mostly in research labs.
For market level, data science has become real demanding field nowadays, it’s also called the most ‘sexiest job’ in this century and its highly paid job. It include big data, data analytics, data mining, data storage issues and data movement etc. Of course you need a wast and high level of skill set to enter in this domain.
After this cloud computing is most demanding skill nowadays according to LinkedIn.
But the good thing is that you can adjust in computer science domain according to your own level of skills. There is lot of demand for web development as well and you can easily find related web application jobs, but its ordinary level work for the computer scientist.