I am not sure what variety of ficus. Someone tossed it to the curb 20 years ago and I adopted it. I did repot it in January of this year from a 10" pot to a 14" pot. I knocked all the old soil off the roots and repotted it with new soil. I did not trim the roots. Twice a year I put Jobes fertilizer spikes in the soil, like I have always done.
It is all of the leaves that have developed these spots. Yes, the brown spots in the center of the spots are dead spots. The tree has been in the same spot of my home for many years. My watering schedule hasn't changed. I water 3 weeks, then let it dry out for one week. I am afraid he has got some sort of bacterial infection that might not be curable.