CA Scope

Hello,
Since your interest lies in the future (assuming after 5-10 years) of CA let me answer your question in two prospects:
1) Future CA demand in India- Undoubtedly, there will always be a rising demand for CA professionals due to a growing number of companies in India. However, this also means that you need to always be competent in your career to grab better opportunities in the future since the companies will hire only the best professionals.
2) Mediocre CA jobs- Since many tasks of a typical CA is a routine job with some procedural working on a given assignment, there is always a room for automation. With the software companies emerging in the financial sector, chances are high that CA professionals will be seen using sophisticated software in the near future (which will obviously cut down jobs for the mediocre ones). Point of the verdict- The profession of CA is highly promising in the near future provided you keep your mind open to different technologies and be a learner for a lifetime, which will also help you to be a step ahead of others.
I hope this helped. Have a great career ahead.

If you wish to settle abroad, because you think there are more perspectives out there for Indian Chartered Accountants, then you are wrong, it won't be that easy. It's better if you settle in India or else you have selected wrong courses. If you wish to settle abroad, because of social reasons, then maybe you will have to improve your educational recognition. This would be simpler though. If you are an Indian Chartered Accountant, there are many Memorandum of Understandings that would allow you exemptions in pursuing the other worldly recognised courses. Yes, you will have to pursue the local courses in those countries for getting better prospective. One way out is that you can work with Indian Companies abroad or Foreign Countries who have operations in India because these are the companies who would require a specialised accountant to deal with legal issues relating to India, just like Indian companies employ CPA.
Conclusion: Indian Chartered Accountants can only have jobs in foreign where Indian operations are involved or else you need to pursue the locally recognised course in that country, check what exemptions you get because of your Indian education and pursue that course to do practice in both - Foreign Operations and Indian Operations, outside India.