Great for you, if it worked in your case. Generally speaking it doesn't really happen this way. When you lose weight you don't lose fat cells, they just become smaller, we could say deflated. Fat cells remain where they are, and when you gain weight they happily fill up again exactly as they were before, in exactly the place they are. But fat cells, like any other cells, don't live forever. Old ones die, and new ones form. Where the new one forms is the key for the fat distribution. If a person has typically male predispositions including male hormonal balance, the fat cells will primarily form on male fat pattern. But when a person has female hormonal balance the new cells will form on primarily female areas. But it's not just dependant on hormones but also many other genetic factors, which is why some trans women get amazing "redistribution" results, and others not so much, even if their hormone levels are ideal. Intentionally losing weight is unlikely to cause death of larger number of fat cells.. but some will, as they do all the time. If you were losing weight in healthy way (this would be slow, over a long period, like 1 year), and gaining it slowly (another year), it just might mean that enough old fat cells died during that time, and new ones formed on exactly the right places. If you were to lose weight in 2 months, and gain everything back in another 2 months, that most likely wouldn't make really noticeable difference in body shape.
