Your subject line - "CA final subject syllabus change", is something tough to predict for May 2015 Examination. So far, there has not been any hint or suggestions whether syllabus is going to change in May 2015.
On the question of amendments, it again depends on the reforms, which the Government is contemplating to bring about. Most likely changes in DTC, GST and Companies Act which the whole country is watching out, and other areas like AS, SA,, SEBI etc. are something which is also to be considered.
Overall, there will be significant changes expected to occur in next couple of years, it appears.