Not that I know of tbh. But to be fair, I don't think people advertise that much getting off of the wait list (not that there's anything wrong with it, I was wait-listed the first time I applied and did not get in). I'm sure there are some in my cohort that I don't know of. There are circumstances that lead some people to turn down offers.
I'm not trying to be discouraging but I'll be honest, there's a very small chance to get off the wait-list at U of T. They keep a huge list, I think around 70 people. It's not ranked as you probably know, and they do this so that they ensure each cohort is diverse in many ways (experience, specialization streams, culture, age, ability...etc). It's also an extremely competitive program so even making the wait-list, although not ideal, is an accomplishment. It means you have what it takes but maybe need to tweak your application to stand out more next year.
One of the SWs at my practicum did her MSW a few years ago and told me she got off the wait-list, so it does happen. If you look at the forums from previous years, the wait-list does move and you'll see a few people got in. There are unicorns! I just don't want to get your hopes up but I also want you to recognize that it is a really good sign to be wait-listed as well.