A lot can be acheived in a year, especially if you are new to the iron game. I speak for myself on this issue, because in two 1-year periods I have made signifigant changes.
Year 1 - Dropped from 205 to 155, looked like shit, but hey.. I WAS FINALLY THIN AND LOOKING GOOD! so I thought at least.
Year 2 - Decided I wanted to get bigger, but not be fat like I used to be, so I started lifting and bulking. I now stand at my original weight of 205, but look drastically different.
So there you have it, 2 years, 100 pounds of change. It can happen if you make it work.