Can a nasal collapse get worse?

If a nose stays essentially the same for 10 years following a fracture, it is not likely to change much in the future. There is always a possibility that with facial aging nasal collapse could become more visible. Of course, if it hasnt prompted a consult for revision by now...

Having been stable, from a nasal breathing standpoint, for over ten years it is unlikely you should see worsening.  If you begin to become symptomatic or aesthetically the dorsum appears worse, schedule a consult with a board certified surgeon for evaluation.  Good Luck.

It is possible that either any breathing issues of the external appearance of an inverted V can worsen over time. However, this typically occurs slowly over a period of many years. If your breathing or the appearance of your nose are not major issues at that point, you would probably be best off waiting to see how things change over time. If either ever become a significant issue for you they can both be improved with rhinoplasty surgery.Stephen Weber MD, FACSDenver Facial Plastic Surgeon

It is doubtful that your nose will change much if it has been fairly stable these past ten years.  If you are ok with your nose then leave it alone.

The inverted V from retraction or collapse of the upper cartilage can become visible many years after rhinoplasty. The cause is that over time the skin will thin on the bridge and the V can become more aparent. If things are good now however over ten more years they can stay the same. Revision should be about the here and now, not what might be.

It is unlikely that there would be a significant change in your nasal shape after "over ten years " from your surgery.