My understanding is that the president of the governing body had much more power as an individual until the late 1970s or so. Raymond Franz brought this up in his book Crisis of Conscience and, if I recall correctly, he quoted them as saying that "the tail is wagging the dog" instead of the other way around. That led to a transfer of power from the President to them.
I don't see anything that would indicate that a single member of the governing body will get the power that the president used to have.