Their is not any specific criteria which defines which branch will have more job opportunities in future. Every branch have it's own significance and due to which they are all growing day by day. Keeping the branch aside, even the technology in those branches are changing day by day which make it difficult to say which branch to choose on the basis of job. Here instead of looking for branch on basis of job, you should choose the field of your passion and choice and you can create a lots of opportunities in their by your passion of work. If you work hard and with devotion jobs can be achievied in any branch.