Nasal Valve Collapse 2 months post op? Any hope for it improving with swelling or will it only get worse/ require revision?!

You may experience improvement in your breathing as the swelling abates.  The valve collapse may also subside, but there's no way to know for sure.  Nasal valve collapse is due to both weak wall as well as narrow airway.  The more narrow the airway, the more negative pressure that builds up inside that side of the nose when you inhale and thus the more pull on the lateral wall.  This is the "weak wall versus the thin straw" concept.  If you try to suck a milkshake through a thin straw, the walls of the straw collapse.  If you take a straw of equal strength, but wider diameter, you can drink the milkshake without the walls collapsing.  So, if the swelling inside your nose subsides enough, you will not experience wall collapse.  To what degree your swelling will still improve, I can't say, but I wish you the best!

Knowing what exactly was done in during your surgery would certainly be helfpul.  At this point it is likely swelling. You might want to discuss this with your surgeon.

You are still early in your healing phase.  Pre and post op pictures would help to give a better opinion on what exactly is happening.