I would think that along with CA if one can pursue ACS/ICWA & other post qualification courses it will be really help for switching over as well good start Be careful before venturing into Gulf ; once gulf ever Gulf ..... Unfortunately Gulf experience works negative here excepting may be in MNC Banks or oil companies, if you have worked in such industry there.
Onr advantage for CA'S is there is no retirement . On the income front it may not be like IIM'S or other top Business schools. But you may have stability,other sector is Govt sector which is now being avoided by CA'S.
Next 10- 15 years should not be a problem if the number gets added by say 50- 60000 with people also retiring at the same time.
Go ahead...Wish you Victory .