How much will my nose change from 3 months post op Rhinoplasty to final result?

It is difficult to answer your question without photographs.  To generalize, by 3 months, 90% of your swelling should have improved and you are very close to your final result...So the next question is when will you see the final result...  Swelling after Rhinoplasty may persist up to 9 months or to even a year post-operatively.  Most of the swelling will improve significantly in the first few weeks, so it is normal to start seeing subtle differences in contour and definition 3 months out compared to the day of cast removal.  Examples of these differences include tip definition and residual deformities in a dorsal hump, for example.Things to worry about would be signs of infection such as focused swelling on a specific area of your nose, redness, increased, tenderness or drainage.  Sometimes, your Rhinoplasty surgeon may use cartilage grafts to add definition or improve definition -- these can get infected, so you should definitely follow up closely with your surgeon if you see any signs of infection or have further questions about your outcome.Good luck.Dr Markarian 

While it is agreed upon that nose shape may evolve over several months post op, even up to a year, residual deformities i.e.. dorsal hump may not improve with time. Corrective features become more prominent as swelling goes down and tip definition and projection becomes more apparent with time.

The nose often continues to settle over the next few months as the edema
finally escapes and the soft tissues adapt to their new underlying framework.
It will take 6 months to a year to see a final result. Close follow-up with the
surgeon is essential. Assuming there is no infection, patients should allow at
least 6 months for the swelling to resolve and the tissues to soften before
contemplating any changes. At that point, a detailed exam and discussion will
help delineate the best treatment option.

If you could provide photos to better understand what you are referring to.  Typically, longterm, a rhinoplasty can result in less tip prominence due to dissection around the tip weaking tip support structures.  Thus it seems unusual for you to notice more tip projection as opposed to less with time.  

As swelling resolves, the tip of the nose will typically deproject (get closer to the face) and counter-rotate slightly.  In general at 3-6 months 60-80% of the swelling will have resolved and the remainder will resolve over the course of 1 year.  Bring up your concerns with your surgeon and follow up closely with him/her to ensure the best results.