It's called "Disney Springs" (Sounds more stupid IMO) and yes, the property size tripled.
Personally I'm not a fan of it, a lot of the stores are just fashion and clothes and the rest is expensive restaurants. They're trying to make it more like Universal City Walk, and appeal to the Brazilian tourist crowd. The only remnants of Downtown Disney is Marketplace side and West Side, and even then Disney Quest just closed so West Side is even less interesting. I left that location right before it opened up all its new areas but I regularly visit with friends.