Assuming that a person's style is somehow immutable and unchanging is a false assumption. Would Edward Weston have photographed his peppers if he had followed this constraint? If a particular subject catches one's eye then there must be a reason that it does. I personally always make a photograph when this cirsumstance occurs. I may not immediately make a print but the image is there for the future. The only exception would be those images that are so cliche that doing them again would be meaningless. So I would say, when in doubt shoot. I periodically review my negatives to find new images. As I have said before I don't think that any photographer at the end of his life says that he regretted taking too many photographs.