Nose to drop after closed revision rhino depending on how scars heal?

I had closed revision rhino 3 days ago, where my nose was shortened by 4mm using 3 sutures (surgeon measured 4mm during the op). My nose is still taped up, but i love how high it sits. The 4 mm lift was exactly what it needed. However, my surgeon told me that depending on how the scars from the sutures heal, my nose could drop by 1 mm. Will this happen within the next couple of months, or over years? and is there anything I can do to prevent it? thanks Docs!