My loss has definitely slowed. I'm 15 months out now, and noticed it really throttle back around 9 months but it still hasn't completely stopped. I reached "goal" a week ago - having lost 115lbs; I suspect the loss will stop completely here soon, which I'm fine with.
Its important to remember that success isn't measured by whether or not your hit your "goal" weight, but rather by how much of your excess weight you're able to lose and maintain. So for example, based on BMI if you have 120lbs to lose to get to a "healthy" weight, then you can expect to lose AROUND 78lbs (65%) of that excess weight. (We all know BMI is an awful measure, but its the current standard). That varies from 60-80% from person to person, and you should expect some amount of regain in the years immediately following. Most surgeons consider LONG TERM success to be a loss of 50% of your excess weight after 5 years.
So, all that to say, you are right where you need to be. Keep to your plan, and give it time. Goal weights are helpful, but they aren't the end-all-be-all measure of success. You're already a success!