100% certain the answer will be....
...we don't know!
We don't have a crystal ball, and we can't see into the future.
There are areas on the boards that deal with things like Exercise (which can help you build muscles and look..."toned"...) and issues after weight loss which might help you learn some things about skin sagging, etc.
Every human body is different and reacts differently. You'll just have to find out as time goes on.
~Made of star stuff~