gym_ben_92 said:
keeping the compression vest on for longer actually shrinks the loose skin down
To answer the original question directly: in most men who carried a modest amount of tissue and are otherwise a reasonable weight, skin like this does redrape on its own over the following months without any further operation. What you are seeing at seven weeks is not the finished chest.
A few honest points on what it depends on, though, because it is not the same for every man.
Skin retraction is driven by the elasticity of your own skin, and that is set by things you cannot change on a forum: your age, how long the chest was stretched, how much volume came out, whether you smoke, and whether your weight stays steady. Younger skin that was stretched for a shorter time draws in best. As a rough guide the bulk of the tightening happens over the first 3 to 6 months, and it can carry on quietly improving out to a year.
On the vest: it earns its weeks for compression, comfort and helping the layers settle onto the chest wall, but it does not itself shrink or shorten skin. Wearing it longer than your surgeon set does not train the skin tighter, so there is nothing to gain by extending it on your own. The skin retracts because of its own elasticity, not because it is held down.
Where it is different is genuine skin excess. In higher grade cases, the grade 3 chests, men who have lost a large amount of weight, or where a big volume was removed, the skin has sometimes been stretched beyond what it can fully draw back, and it does not redrape completely however long you wait. In that situation a separate skin removal is sometimes planned as a second stage, usually 6 to 12 months on once everything has settled, and it leaves a longer scar than the line around the areola. The site pages on skin removal in gynaecomastia surgery and on the grades set out where that line tends to fall.
One thing that is not this: if one side suddenly swells tight, hard and painful rather than looking loose, that is a different problem and a same day call to your surgeon, not a skin question. Whether your own skin will fully draw in, and whether you sit near that skin excess threshold, is a judgement for the surgeon who can examine you and follow you up, not something a reader here can settle for your chest.